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Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Derivatives |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Unrealized losses, net of tax | $ (4) | $ (11)
Net change related to other comprehensive income (loss), tax | 6 | 1
Investments |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Unrealized losses, net of tax | (75) | (510)
Net change related to other comprehensive income (loss), tax | (69) | (503)
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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