CIK 0000017797
| Fakt | Wert | Zeit | Quelle |
|---|---|---|---|
| accounts_payable | {"amount": 4940000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| accounts_payable | {"amount": 5223000000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| capex | {"amount": 8240000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "c | 2026-06-30 | sec_edgar |
| capex | {"amount": 6428000000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "c | 2025-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 673000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2026-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 245000000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2025-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 850000000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2026-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 363000000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2025-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 442000000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2025-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 421000000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2024-12-31 | sec_edgar |
| cashflow_financing | {"amount": 2424000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2026-06-30 | sec_edgar |
| cashflow_financing | {"amount": 1245000000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2025-06-30 | sec_edgar |
| cashflow_investing | {"amount": -6209000000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", " | 2026-06-30 | sec_edgar |
| cashflow_investing | {"amount": -6264000000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", " | 2025-06-30 | sec_edgar |
| cashflow_operating | {"amount": 4272000000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "c | 2026-06-30 | sec_edgar |
| cashflow_operating | {"amount": 5040000000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "c | 2025-06-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 779702193, "concept": "dei:EntityCommonStockSharesOutstanding" | 2026-07-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 780000000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2026-06-30 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 778000000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2025-12-31 | sec_edgar |
| current_assets | {"amount": 13149000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| current_assets | {"amount": 11613000000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| current_liabilities | {"amount": 19888000000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| current_liabilities | {"amount": 21047000000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 779702193} | 2026-07-31 | sec_edgar |
| depreciation_amortization | {"amount": 3702000000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currenc | 2026-06-30 | sec_edgar |
| depreciation_amortization | {"amount": 3659000000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currenc | 2025-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.13, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2026-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 1.065, "concept": "us-gaap:CommonStockDividendsPerShareDeclare | 2026-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 2.09, "concept": "us-gaap:CommonStockDividendsPerShareDeclared | 2025-06-30 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 1.045, "concept": "us-gaap:CommonStockDividendsPerShareDeclare | 2025-06-30 | sec_edgar |
| eps_basic | {"per": "shares", "amount": 3.35, "concept": "us-gaap:EarningsPerShareBasic", "currency": | 2026-06-30 | sec_edgar |
| eps_basic | {"per": "shares", "amount": 1.38, "concept": "us-gaap:EarningsPerShareBasic", "currency": | 2026-06-30 | sec_edgar |
| eps_basic | {"per": "shares", "amount": 3, "concept": "us-gaap:EarningsPerShareBasic", "currency": "US | 2025-06-30 | sec_edgar |
| eps_basic | {"per": "shares", "amount": 1.25, "concept": "us-gaap:EarningsPerShareBasic", "currency": | 2025-06-30 | sec_edgar |
| eps_diluted | {"per": "shares", "amount": 3.35, "concept": "us-gaap:EarningsPerShareDiluted", "currency" | 2026-06-30 | sec_edgar |
| eps_diluted | {"per": "shares", "amount": 1.38, "concept": "us-gaap:EarningsPerShareDiluted", "currency" | 2026-06-30 | sec_edgar |
| eps_diluted | {"per": "shares", "amount": 3, "concept": "us-gaap:EarningsPerShareDiluted", "currency": " | 2025-06-30 | sec_edgar |
| eps_diluted | {"per": "shares", "amount": 1.25, "concept": "us-gaap:EarningsPerShareDiluted", "currency" | 2025-06-30 | sec_edgar |
| goodwill | {"amount": 19010000000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2026-06-30 | sec_edgar |
| goodwill | {"amount": 19010000000, "concept": "us-gaap:Goodwill", "currency": "USD"} | 2025-12-31 | sec_edgar |
| income_tax_expense | {"amount": 160000000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2026-06-30 | sec_edgar |
| income_tax_expense | {"amount": 493000000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2026-06-30 | sec_edgar |
| income_tax_expense | {"amount": 312000000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2025-06-30 | sec_edgar |
| income_tax_expense | {"amount": 119000000, "concept": "us-gaap:IncomeTaxExpenseBenefit", "currency": "USD"} | 2025-06-30 | sec_edgar |
| industry_sic | {"code": "4931", "scheme": "SIC", "description": "Electric & Other Services Combined"} | sec_edgar | |
| interest_expense | {"amount": 957000000, "concept": "us-gaap:InterestExpenseNonoperating", "currency": "USD"} | 2026-06-30 | sec_edgar |
| interest_expense | {"amount": 1925000000, "concept": "us-gaap:InterestExpenseNonoperating", "currency": "USD" | 2026-06-30 | sec_edgar |
| interest_expense | {"amount": 1786000000, "concept": "us-gaap:InterestExpenseNonoperating", "currency": "USD" | 2025-06-30 | sec_edgar |
| interest_expense | {"amount": 897000000, "concept": "us-gaap:InterestExpenseNonoperating", "currency": "USD"} | 2025-06-30 | sec_edgar |
| long_term_debt_current | {"amount": 6666000000, "concept": "us-gaap:LongTermDebtCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| long_term_debt_current | {"amount": 7104000000, "concept": "us-gaap:LongTermDebtCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| long_term_debt_noncurrent | {"amount": 82242000000, "concept": "us-gaap:LongTermDebtNoncurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| long_term_debt_noncurrent | {"amount": 80108000000, "concept": "us-gaap:LongTermDebtNoncurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| net_income | {"amount": 2642000000, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2026-06-30 | sec_edgar |
| net_income | {"amount": 1092000000, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2026-06-30 | sec_edgar |
| net_income | {"amount": 984000000, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2025-06-30 | sec_edgar |
| net_income | {"amount": 2363000000, "concept": "us-gaap:NetIncomeLoss", "currency": "USD"} | 2025-06-30 | sec_edgar |
| operating_expenses | {"amount": 12390000000, "concept": "us-gaap:CostsAndExpenses", "currency": "USD"} | 2026-06-30 | sec_edgar |
| operating_expenses | {"amount": 5553000000, "concept": "us-gaap:CostsAndExpenses", "currency": "USD"} | 2026-06-30 | sec_edgar |
| operating_expenses | {"amount": 5692000000, "concept": "us-gaap:CostsAndExpenses", "currency": "USD"} | 2025-06-30 | sec_edgar |
| operating_expenses | {"amount": 11604000000, "concept": "us-gaap:CostsAndExpenses", "currency": "USD"} | 2025-06-30 | sec_edgar |
| operating_income | {"amount": 4774000000, "concept": "us-gaap:OperatingIncomeLoss", "currency": "USD"} | 2026-06-30 | sec_edgar |
| operating_income | {"amount": 2049000000, "concept": "us-gaap:OperatingIncomeLoss", "currency": "USD"} | 2026-06-30 | sec_edgar |
| operating_income | {"amount": 4173000000, "concept": "us-gaap:OperatingIncomeLoss", "currency": "USD"} | 2025-06-30 | sec_edgar |
| operating_income | {"amount": 1830000000, "concept": "us-gaap:OperatingIncomeLoss", "currency": "USD"} | 2025-06-30 | sec_edgar |
| pretax_income | {"amount": 3202000000, "concept": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeT | 2026-06-30 | sec_edgar |
| pretax_income | {"amount": 1305000000, "concept": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeT | 2026-06-30 | sec_edgar |
| pretax_income | {"amount": 2724000000, "concept": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeT | 2025-06-30 | sec_edgar |
| pretax_income | {"amount": 1127000000, "concept": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeT | 2025-06-30 | sec_edgar |
| profit_loss | {"amount": 2722000000, "concept": "us-gaap:ProfitLoss", "currency": "USD"} | 2026-06-30 | sec_edgar |
| profit_loss | {"amount": 1145000000, "concept": "us-gaap:ProfitLoss", "currency": "USD"} | 2026-06-30 | sec_edgar |
| profit_loss | {"amount": 1007000000, "concept": "us-gaap:ProfitLoss", "currency": "USD"} | 2025-06-30 | sec_edgar |
| profit_loss | {"amount": 2411000000, "concept": "us-gaap:ProfitLoss", "currency": "USD"} | 2025-06-30 | sec_edgar |
| retained_earnings | {"amount": 6005000000, "concept": "us-gaap:RetainedEarningsAccumulatedDeficit", "currency" | 2026-06-30 | sec_edgar |
| retained_earnings | {"amount": 5056000000, "concept": "us-gaap:RetainedEarningsAccumulatedDeficit", "currency" | 2025-12-31 | sec_edgar |
| revenue | {"amount": 16423000000, "concept": "us-gaap:RevenueFromContractWithCustomerIncludingAssess | 2026-06-30 | sec_edgar |
| revenue | {"amount": 7428000000, "concept": "us-gaap:RevenueFromContractWithCustomerIncludingAssesse | 2026-06-30 | sec_edgar |
| revenue | {"amount": 7373000000, "concept": "us-gaap:RevenueFromContractWithCustomerIncludingAssesse | 2025-06-30 | sec_edgar |
| revenue | {"amount": 15591000000, "concept": "us-gaap:RevenueFromContractWithCustomerIncludingAssess | 2025-06-30 | sec_edgar |
| same_as | {"entity_ref": "37f3c846-7aa5-422e-b637-4a69acc2ea96"} | er_internal | |
| shares_wavg_basic | {"unit": "shares", "value": 779000000, "concept": "us-gaap:WeightedAverageNumberOfSharesOu | 2026-06-30 | sec_edgar |
| shares_wavg_basic | {"unit": "shares", "value": 779000000, "concept": "us-gaap:WeightedAverageNumberOfSharesOu | 2026-06-30 | sec_edgar |
| shares_wavg_basic | {"unit": "shares", "value": 777000000, "concept": "us-gaap:WeightedAverageNumberOfSharesOu | 2025-06-30 | sec_edgar |
| shares_wavg_basic | {"unit": "shares", "value": 777000000, "concept": "us-gaap:WeightedAverageNumberOfSharesOu | 2025-06-30 | sec_edgar |
| shares_wavg_diluted | {"unit": "shares", "value": 779000000, "concept": "us-gaap:WeightedAverageNumberOfDilutedS | 2026-06-30 | sec_edgar |
| shares_wavg_diluted | {"unit": "shares", "value": 779000000, "concept": "us-gaap:WeightedAverageNumberOfDilutedS | 2026-06-30 | sec_edgar |
| shares_wavg_diluted | {"unit": "shares", "value": 777000000, "concept": "us-gaap:WeightedAverageNumberOfDilutedS | 2025-06-30 | sec_edgar |
| shares_wavg_diluted | {"unit": "shares", "value": 777000000, "concept": "us-gaap:WeightedAverageNumberOfDilutedS | 2025-06-30 | sec_edgar |
| stockholders_equity | {"amount": 54751000000, "concept": "us-gaap:StockholdersEquity", "currency": "USD"} | 2026-06-30 | sec_edgar |
| stockholders_equity | {"amount": 51842000000, "concept": "us-gaap:StockholdersEquity", "currency": "USD"} | 2025-12-31 | sec_edgar |
| total_assets | {"amount": 201091000000, "concept": "us-gaap:Assets", "currency": "USD"} | 2026-06-30 | sec_edgar |
| total_assets | {"amount": 195736000000, "concept": "us-gaap:Assets", "currency": "USD"} | 2025-12-31 | sec_edgar |
| total_equity | {"amount": 56863000000, "concept": "us-gaap:StockholdersEquityIncludingPortionAttributable | 2026-06-30 | sec_edgar |
| total_equity | {"amount": 56478000000, "concept": "us-gaap:StockholdersEquityIncludingPortionAttributable | 2026-03-31 | sec_edgar |
| total_equity | {"amount": 53019000000, "concept": "us-gaap:StockholdersEquityIncludingPortionAttributable | 2025-12-31 | sec_edgar |
| total_equity | {"amount": 52030000000, "concept": "us-gaap:StockholdersEquityIncludingPortionAttributable | 2025-06-30 | sec_edgar |
| total_equity | {"amount": 51794000000, "concept": "us-gaap:StockholdersEquityIncludingPortionAttributable | 2025-03-31 | sec_edgar |
| total_equity | {"amount": 51256000000, "concept": "us-gaap:StockholdersEquityIncludingPortionAttributable | 2024-12-31 | sec_edgar |
| total_liabilities_and_equity | {"amount": 201091000000, "concept": "us-gaap:LiabilitiesAndStockholdersEquity", "currency" | 2026-06-30 | sec_edgar |
| total_liabilities_and_equity | {"amount": 195736000000, "concept": "us-gaap:LiabilitiesAndStockholdersEquity", "currency" | 2025-12-31 | sec_edgar |
| xbrl:AccountsAndOtherReceivablesNetCurrent | {"amount": 4482000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AccountsAndOtherReceivablesNetCurrent | {"amount": 4230000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AccountsPayableCurrent | {"amount": 4940000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AccountsPayableCurrent | {"amount": 5223000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AccrualForEnvironmentalLossContingencies | {"amount": 95000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AccrualForEnvironmentalLossContingencies | {"amount": 72000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AccumulatedDeferredInvestmentTaxCredit | {"amount": 976000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AccumulatedDeferredInvestmentTaxCredit | {"amount": 969000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AccumulatedOtherComprehensiveIncomeLossNetOfTax | {"amount": 209000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AccumulatedOtherComprehensiveIncomeLossNetOfTax | {"amount": 198000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AdditionalCollateralAggregateFairValue | {"amount": 163000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AdditionalCollateralAggregateFairValue | {"amount": 100000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AdditionalPaidInCapitalCommonStock | {"amount": 47563000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AdditionalPaidInCapitalCommonStock | {"amount": 45614000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AllowanceForDoubtfulAccountsReceivable | {"amount": 214000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AllowanceForDoubtfulAccountsReceivable | {"amount": 201000000, "currency": "USD"} | 2026-03-31 | sec_edgar |
| xbrl:AllowanceForDoubtfulAccountsReceivable | {"amount": 194000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AllowanceForDoubtfulAccountsReceivable | {"amount": 195000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:AllowanceForDoubtfulAccountsReceivable | {"amount": 201000000, "currency": "USD"} | 2025-03-31 | sec_edgar |
| xbrl:AllowanceForDoubtfulAccountsReceivable | {"amount": 207000000, "currency": "USD"} | 2024-12-31 | sec_edgar |
| xbrl:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | {"unit": "shares", "value": 2000000} | 2026-06-30 | sec_edgar |
| xbrl:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | {"unit": "shares", "value": 2000000} | 2026-06-30 | sec_edgar |
| xbrl:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | {"unit": "shares", "value": 2000000} | 2025-06-30 | sec_edgar |
| xbrl:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | {"unit": "shares", "value": 2000000} | 2025-06-30 | sec_edgar |
| xbrl:AssetRetirementObligationCashPaidToSettle | {"amount": 249000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AssetRetirementObligationCashPaidToSettle | {"amount": 241000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:AssetRetirementObligationCurrent | {"amount": 570000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AssetRetirementObligationCurrent | {"amount": 579000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AssetRetirementObligationsNoncurrent | {"amount": 9202000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AssetRetirementObligationsNoncurrent | {"amount": 9046000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:Assets | {"amount": 201091000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:Assets | {"amount": 195736000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AssetsCurrent | {"amount": 13149000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AssetsCurrent | {"amount": 11613000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AssetsFairValueDisclosure | {"amount": 14585000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AssetsFairValueDisclosure | {"amount": 13707000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent | {"amount": 0, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent | {"amount": 109000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue | {"amount": 1444000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue | {"amount": 1762000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue | {"amount": 3108000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue | {"amount": 125000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:AvailableForSaleSecuritiesDebtSecurities | {"amount": 6439000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CapitalExpendituresIncurredButNotYetPaid | {"amount": 2574000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CapitalExpendituresIncurredButNotYetPaid | {"amount": 1929000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CashAndCashEquivalentsAtCarryingValue | {"amount": 673000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CashAndCashEquivalentsAtCarryingValue | {"amount": 245000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | {"amount": 850000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | {"amount": 363000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | {"amount": 442000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents | {"amount": 421000000, "currency": "USD"} | 2024-12-31 | sec_edgar |
| xbrl:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect | {"amount": 487000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect | {"amount": 21000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CollateralAlreadyPostedAggregateFairValue | {"amount": 1000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CollateralAlreadyPostedAggregateFairValue | {"amount": 2000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:CommonStockDividendsPerShareDeclared | {"per": "shares", "amount": 2.13, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CommonStockDividendsPerShareDeclared | {"per": "shares", "amount": 1.065, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CommonStockDividendsPerShareDeclared | {"per": "shares", "amount": 2.09, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CommonStockDividendsPerShareDeclared | {"per": "shares", "amount": 1.045, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CommonStockParOrStatedValuePerShare | {"per": "shares", "amount": 0.001, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CommonStockParOrStatedValuePerShare | {"per": "shares", "amount": 0.001, "currency": "USD"} | 2026-03-31 | sec_edgar |
| xbrl:CommonStockParOrStatedValuePerShare | {"per": "shares", "amount": 0.001, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:CommonStockSharesAuthorized | {"unit": "shares", "value": 2000000000} | 2026-06-30 | sec_edgar |
| xbrl:CommonStockSharesAuthorized | {"unit": "shares", "value": 2000000000} | 2025-12-31 | sec_edgar |
| xbrl:CommonStockSharesOutstanding | {"unit": "shares", "value": 780000000} | 2026-06-30 | sec_edgar |
| xbrl:CommonStockSharesOutstanding | {"unit": "shares", "value": 778000000} | 2025-12-31 | sec_edgar |
| xbrl:CommonStockValue | {"amount": 1000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CommonStockValue | {"amount": 1000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTax | {"amount": 2653000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTax | {"amount": 1130000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTax | {"amount": 2338000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTax | {"amount": 993000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | {"amount": 80000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | {"amount": 53000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | {"amount": 23000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest | {"amount": 48000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | {"amount": 2733000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | {"amount": 1183000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | {"amount": 2386000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | {"amount": 1016000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CostDepreciationAmortizationAndDepletion | {"amount": 3389000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CostDepreciationAmortizationAndDepletion | {"amount": 1700000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CostDepreciationAmortizationAndDepletion | {"amount": 3095000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CostDepreciationAmortizationAndDepletion | {"amount": 1583000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CostsAndExpenses | {"amount": 12390000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CostsAndExpenses | {"amount": 5553000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:CostsAndExpenses | {"amount": 11604000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:CostsAndExpenses | {"amount": 5692000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:DebtInstrumentFaceAmount | {"amount": 4675000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedGain | {"amount": 35000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedGain | {"amount": 18000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedGain | {"amount": 20000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedGain | {"amount": 10000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedLoss | {"amount": 81000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedLoss | {"amount": 65000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedLoss | {"amount": 37000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:DebtSecuritiesAvailableForSaleRealizedLoss | {"amount": 17000000, "currency": "USD"} | 2025-06-30 | sec_edgar |
| xbrl:DecommissioningFundInvestments | {"amount": 13590000000, "currency": "USD"} | 2026-06-30 | sec_edgar |
| xbrl:DecommissioningFundInvestments | {"amount": 12889000000, "currency": "USD"} | 2025-12-31 | sec_edgar |
| xbrl:DeferredCreditsAndOtherLiabilities | {"amount": 1901000000, "currency": "USD"} | 2026-06-30 | sec_edgar |