CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenues	$ 6,163	$ 1,871	$ 12,076	$ 3,801
Costs of services (excludes depreciation and amortization and restructuring costs)	4,312	1,363	9,100	2,784
Selling, general, and administrative (excludes depreciation and amortization and restructuring costs)	672	293	1,082	598
Depreciation and amortization	537	167	898	333
Restructuring costs	192	25	382	82
Interest expense	78	29	154	54
Interest income	(16)	(8)	(32)	(18)
Other expense (income), net	1	3	(80)	5
Total costs and expenses	5,776	1,872	11,504	3,838
Income (loss) before income taxes	387	(1)	572	(37)
Income tax expense (benefit)	122	(22)	134	(38)
Net income	265	21	438	1
Less: net income attributable to non-controlling interest, net of tax	9	6	23	7
Net income (loss) attributable to DXC common stockholders	$ 256	$ 15	$ 415	$ (6)
Income (loss) per common share:
Basic (in dollars per share)	$ 0.90	$ 0.11	$ 1.46	$ (0.04)
Diluted (in dollars per share)	0.88	0.10	1.43	(0.04)
Cash dividend per common share (in dollars per share)	$ 0.18	$ 0.14	$ 0.36	$ 0.28