Financial Instruments: (Qualifying Hedging Activity Reported in Accumulated Other Comprehensive Earnings (Losses) Net of Income Taxes) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Jun. 30, 2026 |
Sep. 30, 2025 |
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| AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] | ||||||
| Beginning balance | $ (6,657) | $ (8,984) | $ (10,012) | $ (8,028) | $ (8,984) | $ (9,870) |
| Ending balance | (5,945) | (8,028) | (8,984) | (5,945) | (6,657) | (8,984) |
| Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent | ||||||
| AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] | ||||||
| Beginning balance | 346 | 230 | 182 | 284 | 230 | 467 |
| Derivative (gains)/losses transferred to earnings | (52) | (19) | (125) | (69) | ||
| Change in fair value | (30) | 67 | 105 | (168) | ||
| Ending balance | $ 264 | $ 284 | $ 230 | $ 264 | $ 346 | $ 230 |
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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