CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (unaudited) - USD ($) shares in Thousands, $ in Millions	Total	Total DXC Equity	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock		Non- Controlling Interest
Beginning balance (in shares) at Mar. 31, 2021			257,053
Beginning balance at Mar. 31, 2021	$ 5,308	$ 4,973	$ 3	$ 10,761	$ (5,331)	$ (302)	$ (158)		$ 335
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	282	278			278				4
Other comprehensive loss	(115)	(124)				(124)			9
Share-based compensation expense	18	18		18
Acquisition of treasury stock	(10)	(10)					(10)
Share repurchase program (in shares)			(1,750)
Share repurchase program	(67)	(67)		(74)	7
Stock option exercises and other common stock transactions (in shares)			1,378
Stock option exercises and other common stock transactions	8	8		8
Non-controlling interest distributions and other	(38)	1			1				(39)
Ending balance (in shares) at Jun. 30, 2021			256,681
Ending balance at Jun. 30, 2021	5,386	5,077	$ 3	10,713	(5,045)	(426)	(168)		309
Beginning balance (in shares) at Mar. 31, 2022			240,508
Beginning balance at Mar. 31, 2022	5,375	5,052	$ 3	10,057	(4,450)	(385)	(173)	[1]	323
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	103	102			102				1
Other comprehensive loss	(178)	(178)				(178)
Share-based compensation expense	24	24		24
Acquisition of treasury stock	(10)	(10)					(10)	[1]
Share repurchase program (in shares)			(8,851)
Share repurchase program	(266)	(266)	$ (1)	(374)	109
Stock option exercises and other common stock transactions (in shares)			1,338
Stock option exercises and other common stock transactions	1	1		1
Ending balance (in shares) at Jun. 30, 2022			232,995
Ending balance at Jun. 30, 2022	$ 5,049	$ 4,725	$ 2	$ 9,708	$ (4,239)	$ (563)	$ (183)	[1]	$ 324

[1] 3,160,188 treasury shares as of June 30, 2022.