Consolidated Statements of Comprehensive Income - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Statement of Comprehensive Income [Abstract] | ||||
| Net income | $ 1,295 | $ 1,127 | $ 2,474 | $ 2,232 |
| Net actuarial losses of defined benefit plans: | ||||
| Adjustments, net of tax effect of $4 and ($1); $7 and ($3) | (13) | 1 | (20) | 6 |
| Recognized within net income, net of tax effect of ($1) and ($1); ($2) and ($2) | 4 | 3 | 6 | 5 |
| Derivative instruments: | ||||
| Change in fair value, net of tax effect of $0 and $0; $0 and $0 | 0 | 0 | 0 | 1 |
| Available-for-sale investments: | ||||
| Unrealized gains (losses), net of tax effect of $0 and $0; $0 and $2 | 0 | (1) | (2) | (7) |
| Other comprehensive income (loss), net of taxes | (9) | 3 | (16) | 5 |
| Total comprehensive income | $ 1,286 | $ 1,130 | $ 2,458 | $ 2,237 |
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- References No definition available.
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- Definition Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount after tax and 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 adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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