CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018		Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,262	$ 1,782	[1],[2]	$ (100)	[2]
Other comprehensive (loss) income, net of taxes:
Foreign currency translation adjustments, net of tax (benefit) expense of $(1), $75 and $5	(259)	197		(75)
Cash flow hedges adjustment, net of tax (benefit) expense of $(3), $(3) and $12	(12)
Cash flow hedges adjustment, net of tax (benefit) expense of $(3), $(3) and $12		(11)		21
Available-for-sale securities, net of tax expense of $0, $2 and $0	0	9		0
Pension and other post-retirement benefit plans, net of tax:
Prior service cost, net of tax (benefit) expense of $(5), $8 and $0	(21)	38		0
Amortization of transition obligation, net of tax expense of $0, $0, and $0	0	1		1
Amortization of prior service cost, net of tax benefit of $2, $4 and $5	(13)	(14)		(12)
Foreign currency exchange loss, net of tax benefit of $0, $0 and $1	0	0		(2)
Pension and other post-retirement benefit plans, net of tax	(34)	25		(13)
Other comprehensive (loss) income, net of taxes	(305)	220		(67)
Comprehensive income (loss)	957	2,002		(167)
Less: comprehensive income attributable to non-controlling interest	2	31		7
Comprehensive income (loss) attributable to DXC common stockholders	$ 955	$ 1,971		$ (174)

[1] As a result of the USPS Separation, the Consolidated Statements of Operations, Consolidated Balance Sheets, and related financial information reflect USPS's operations and assets and liabilities as discontinued operations for all periods presented. The cash flows of USPS have not been segregated and are included in the Consolidated Statement of Cash flows for the fiscal year ended March 31, 2018 and through the separation date of May 31, 2018 in the Consolidated Statement of Cash Flows for the fiscal year ended March 31, 2019.

[2] Fiscal 2018 and fiscal 2017 have been adjusted to give effect to the retrospective adoption of ASU 2016-15. See Note 22 - "Reconciliation of Previously Reported Amounts to Recast Financial Statements."