CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury	Noncontrolling Interests
Beginning balance (in shares) at Mar. 31, 2022		275
Beginning balance (in shares) at Mar. 31, 2022						(130)
Beginning balance at Mar. 31, 2022	$ (1,792)	$ 2	$ 7,275	$ 9,030	$ (1,534)	$ (17,045)	$ 480
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employee plans, net of forfeitures (in shares)		2
Issuance of shares under employee plans, net of forfeitures	(26)	$ 1	127			(154)
Share-based compensation	86		86
Repurchase of common stock	(1,524)		121			$ (1,645)
Repurchase of common stock (in shares)						(5)
Net income	1,776			1,694			82
Other comprehensive loss	464				420		44
Cash dividends declared	(145)			(145)
Payments to noncontrolling interests	(77)						(77)
Reclassification of recurring compensation to other accrued liabilities	(4)						(4)
Other	(7)						(7)
Ending balance (in shares) at Sep. 30, 2022		277
Ending balance at Sep. 30, 2022	(1,249)	$ 3	7,609	10,579	(1,114)	$ (18,844)	518
Ending balance (in shares) at Sep. 30, 2022						(135)
Beginning balance (in shares) at Jun. 30, 2022		277
Beginning balance (in shares) at Jun. 30, 2022						(133)
Beginning balance at Jun. 30, 2022	(1,472)	$ 3	7,350	9,732	(948)	$ (18,141)	532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employee plans, net of forfeitures (in shares)		0
Issuance of shares under employee plans, net of forfeitures	34		36			(2)
Share-based compensation	46		46
Repurchase of common stock	(524)		177			$ (701)
Repurchase of common stock (in shares)						(2)
Net income	967			926			41
Other comprehensive loss	(172)				(166)		(6)
Cash dividends declared	(78)			(78)
Payments to noncontrolling interests	(41)						(41)
Reclassification of recurring compensation to other accrued liabilities	(2)						(2)
Other	(7)			(1)			(6)
Ending balance (in shares) at Sep. 30, 2022		277
Ending balance at Sep. 30, 2022	$ (1,249)	$ 3	7,609	10,579	(1,114)	$ (18,844)	518
Ending balance (in shares) at Sep. 30, 2022						(135)
Beginning balance (in shares) at Mar. 31, 2023		277
Beginning balance (in shares) at Mar. 31, 2023	(141)					(141)
Beginning balance at Mar. 31, 2023	$ (1,490)	$ 3	7,747	12,295	(905)	$ (20,997)	367
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employee plans, net of forfeitures (in shares)		1
Issuance of shares under employee plans, net of forfeitures	(40)		54			(94)
Share-based compensation	91		91
Repurchase of common stock	(1,513)					$ (1,513)
Repurchase of common stock (in shares)						(4)
Net income	1,700			1,622			78
Other comprehensive loss	18				18
Cash dividends declared	(157)			(157)
Payments to noncontrolling interests	(77)						(77)
Other	4		7	1			(4)
Ending balance (in shares) at Sep. 30, 2023		278
Ending balance at Sep. 30, 2023	$ (1,464)	$ 3	7,899	13,761	(887)	$ (22,604)	364
Ending balance (in shares) at Sep. 30, 2023	(145)					(145)
Beginning balance (in shares) at Jun. 30, 2023		278
Beginning balance (in shares) at Jun. 30, 2023						(143)
Beginning balance at Jun. 30, 2023	$ (1,240)	$ 3	7,824	13,182	(848)	$ (21,763)	362
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employee plans, net of forfeitures (in shares)		0
Issuance of shares under employee plans, net of forfeitures	26		27			(1)
Share-based compensation	48		48
Repurchase of common stock	(840)					$ (840)
Repurchase of common stock (in shares)						(2)
Net income	703			664			39
Other comprehensive loss	(39)				(39)
Cash dividends declared	(84)			(84)
Payments to noncontrolling interests	(38)						(38)
Other	0			(1)			1
Ending balance (in shares) at Sep. 30, 2023		278
Ending balance at Sep. 30, 2023	$ (1,464)	$ 3	$ 7,899	$ 13,761	$ (887)	$ (22,604)	$ 364
Ending balance (in shares) at Sep. 30, 2023	(145)					(145)