Condensed Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Millions	Total	Common Shares	Retained Earnings/(Accumulated Deficit)	Treasury Shares	Accumulated Other Comprehensive Loss	Noncontrolling Interests	GIA
Balance at beginning of period (in shares) at Jun. 30, 2024		327,000
Balance at beginning of period at Jun. 30, 2024	$ (3,212)	$ 2,917	$ (286)		$ (167)	$ 1
Treasury, balance at beginning of period (in shares) at Jun. 30, 2024				(83,000)
Treasury, balance at beginning of period at Jun. 30, 2024	(5,677)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	416
Net earnings	417					1
Other comprehensive loss, net of tax	12				12
Employee stock plans activity, net of shares withheld for employee taxes (in shares)		0		1,000
Employee stock plans activity, net of shares withheld for employee taxes	(2)	$ (15)		$ (17)
Purchase of treasury shares	(375)	$ (75)
Share repurchase program activity (in shares)				(3,000)
Share repurchase program activity	(378)			$ (303)
Dividends	(119)		(119)
Payments to Noncontrolling Interests	0
Other	2		3			(1)
Balance at end of period (in shares) at Sep. 30, 2024		327,000
Balance at end of period at Sep. 30, 2024	(3,276)	$ 2,827	14		(155)	1
Treasury, balance at end of period (in shares) at Sep. 30, 2024				(85,000)
Treasury, balance at end of period at Sep. 30, 2024	$ (5,963)
Balance at beginning of period (in shares) at Jun. 30, 2025	271,000	271,000
Balance at beginning of period at Jun. 30, 2025	$ (2,634)	$ 2,956	783		(155)	147
Treasury, balance at beginning of period (in shares) at Jun. 30, 2025	(32,000)			(32,000)
Treasury, balance at beginning of period at Jun. 30, 2025	$ (6,365)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	450
Net earnings	454					4
Other comprehensive loss, net of tax	(4)				(4)
Acquisition-related cash and share-based compensation costs	1					(1)
Employee stock plans activity, net of shares withheld for employee taxes (in shares)		0		1,000
Employee stock plans activity, net of shares withheld for employee taxes	(49)	$ (135)		$ (86)
Purchase of treasury shares	(375)	$ (75)
Share repurchase program activity (in shares)				(2,000)
Share repurchase program activity	(378)			$ (303)
Dividends	(117)		(117)
Payments to Noncontrolling Interests	3						$ (3)
Other	$ 1					1
Balance at end of period (in shares) at Sep. 30, 2025	271,000	271,000
Balance at end of period at Sep. 30, 2025	$ (2,731)	$ 2,746	$ 1,116		$ (159)	$ 148
Treasury, balance at end of period (in shares) at Sep. 30, 2025	(33,000)			(33,000)
Treasury, balance at end of period at Sep. 30, 2025	$ (6,582)