CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Revenues	$ 4,851,000,000	$ 5,013,000,000	$ 9,741,000,000	$ 10,295,000,000
Costs of services (excludes depreciation and amortization and restructuring costs)	3,679,000,000	3,518,000,000	7,301,000,000	7,385,000,000
Selling, general, and administrative (excludes depreciation and amortization and restructuring costs)	489,000,000	569,000,000	996,000,000	1,009,000,000
Depreciation and amortization	467,000,000	484,000,000	937,000,000	955,000,000
Goodwill impairment losses	2,887,000,000	0	2,887,000,000	0
Restructuring costs	32,000,000	157,000,000	174,000,000	342,000,000
Interest expense	104,000,000	83,000,000	195,000,000	168,000,000
Interest income	(67,000,000)	(33,000,000)	(97,000,000)	(65,000,000)
Gain on arbitration award	(632,000,000)	0	(632,000,000)	0
Other income, net	(109,000,000)	(97,000,000)	(227,000,000)	(191,000,000)
Total costs and expenses	6,850,000,000	4,681,000,000	11,534,000,000	9,603,000,000
(Loss) income from continuing operations before income taxes	(1,999,000,000)	332,000,000	(1,793,000,000)	692,000,000
Income tax expense	116,000,000	73,000,000	154,000,000	202,000,000
(Loss) income from continuing operations	(2,115,000,000)	259,000,000	(1,947,000,000)	490,000,000
Income from discontinued operations, net of taxes	0	0	0	35,000,000
Net (loss) income	(2,115,000,000)	259,000,000	(1,947,000,000)	525,000,000
Less: net income (loss) attributable to non-controlling interest, net of tax	4,000,000	(3,000,000)	9,000,000	4,000,000
Net (loss) income attributable to DXC common stockholders	$ (2,119,000,000)	$ 262,000,000	$ (1,956,000,000)	$ 521,000,000
Basic:
Continuing operations (in dollars per share)	$ (8.19)	$ 0.93	$ (7.44)	$ 1.72
Discontinued operations (in dollars per share)	0	0	0	0.12
Basic (in dollars per share)	(8.19)	0.93	(7.44)	1.84
Diluted:
Continuing operations (in dollars per share)	(8.19)	0.92	(7.44)	1.69
Discontinued operations (in dollars per share)	0	0	0	0.12
Diluted (in dollars per share)	$ (8.19)	$ 0.92	$ (7.44)	$ 1.81