Condensed Consolidated Statement of Shareholder's Equity (unaudited) (Parenthetical) - Accumulated Other Comprehensive Loss (AOCI) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Fair value of effective portion of cash flow hedges, tax provision (benefit) | $ 151 | $ (9) |
| Pension and other benefits, tax provision (benefit) | $ (1) | $ (1) |
| X | ||||||||||
- Definition Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for 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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| X | ||||||||||
- Definition Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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