Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Parenthetical) (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
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| Derivatives | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Unrealized gains (losses), net of tax | $ 7 | $ (4) |
| Net change related to other comprehensive income (loss), tax | (3) | 6 |
| Investments | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Unrealized gains (losses), net of tax | 297 | (75) |
| Net change related to other comprehensive income (loss), tax | 296 | (69) |
| Translation adjustments and other | ||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
| Net change related to other comprehensive income (loss), tax | $ 0 | $ 0 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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