CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income		$ 102	$ 1,103	$ 197	$ 658
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments, net of tax	[1]	99	170	(75)	200
Cash flow hedges adjustments, net of tax	[2]	1	0	9	18
Available-for-sale securities, net of tax	[3]	0	(11)	0	(6)
Pension and other post-retirement benefit plans, net of tax:
Prior service cost, net of tax	[4]	0	(1)	0	(1)
Amortization of prior service cost, net of tax	[5]	(2)	(2)	(6)	(12)
Pension and other post-retirement benefit plans, net of tax		(2)	(3)	(6)	(13)
Other comprehensive income (loss), net of taxes		98	156	(72)	199
Comprehensive income		200	1,259	125	857
Less: comprehensive income attributable to non-controlling interest		5	6	20	12
Comprehensive income attributable to DXC common stockholders		$ 195	$ 1,253	$ 105	$ 845

[1] Tax benefit related to foreign currency translation adjustments was $3 and $2 for the three and nine months ended December 31, 2021, respectively, and $9 and $31 for the three and nine months ended December 31, 2020, respectively.

[2] Tax expense related to cash flow hedge adjustments was $1 and $3 for the three and nine months ended December 31, 2021, respectively, and $0 and $6 for the three and nine months ended December 31, 2020, respectively.

[3] Tax benefit related to available-for-sale securities was $4 for the three and nine months ended December 31, 2020.

[4] There was no tax benefit related to prior service costs during the three and nine months ended December 31, 2021 and December 31, 2020, respectively.

[5] There was no tax benefit related to amortization of prior service costs during the three and nine months ended December 31, 2021. Tax benefit related to amortization of prior service costs was $1 and $3 for the three and nine months ended December 31, 2020.