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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, 2022	Sep. 30, 2021
Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized losses, tax	$ (11)	$ (3)
Net change related to other comprehensive income (loss), tax	1	0
Investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized losses, tax	(510)	(110)
Net change related to other comprehensive income (loss), tax	(503)	(112)
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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Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss).

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