v3.25.4

Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses), net of tax	$ (2)	$ (13)	$ (4)	$ (6)
Net change related to other comprehensive income (loss), tax	(1)	9	(2)	6
Investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains (losses), net of tax	(45)	(121)	140	176
Net change related to other comprehensive income (loss), tax	(43)	(116)	140	180
Translation adjustments and other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net change related to other comprehensive income (loss), tax	$ 0	$ 0	$ 0	$ 0

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