CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Dec. 30, 2016	Jan. 01, 2016	[1]	Dec. 30, 2016	Jan. 01, 2016	[1]
Income Statement [Abstract]
Revenues	$ 1,917	$ 1,750		$ 5,718	$ 5,299
Costs of services (excludes depreciation and amortization and restructuring costs)	1,347	1,216		4,131	3,725
Selling, general and administrative (excludes depreciation and amortization and restructuring costs)	333	259		931	799
Depreciation and amortization	161	161		494	503
Restructuring costs	3	7		85	12
Interest expense	33	33		87	92
Interest income	(8)	(8)		(26)	(26)
Other (income) expense, net	(2)	4		3	(3)
Total costs and expenses	1,867	1,672		5,705	5,102
Income from continuing operations, before taxes	50	78		13	197
Income tax expense (benefit)	13	56		(25)	17
Income from continuing operations	37	22		38	180
Income from discontinued operations, net of taxes	0	30		0	216
Net income	37	52		38	396	[2],[3]
Less: net income attributable to noncontrolling interest, net of tax	6	2		13	12
Net income attributable to CSC common stockholders	$ 31	$ 50		$ 25	$ 384
Earnings (loss) per common share - Basic:
Continuing operations (in dollars per share)	$ 0.22	$ 0.16		$ 0.18	$ 1.29
Discontinued operations (in dollars per share)	0.00	0.20		0.00	1.49
Earnings per common share - basic (in dollars per share)	0.22	0.36		0.18	2.78
Earnings (loss) per common share - Diluted:
Continuing operations (in dollars per share)	0.21	0.15		0.17	1.27
Discontinued operations (in dollars per share)	0.00	0.20		0.00	1.45
Earnings per common share - diluted (in dollars per share)	0.21	0.35		0.17	2.72
Cash dividend per common share (in dollars per share)	$ 0.14	$ 2.39		$ 0.42	$ 2.85

[1] Certain prior year balances were adjusted for certain errors in previously issued financial statements related to income taxes and for the adoption of ASU 2016-09 related to employee stock-based compensation. See Note 20 - Reconciliation of Previously Reported Amounts.

[2] Certain prior year balances were adjusted for certain errors in previously issued financial statements related to income taxes and for the adoption of ASU 2016-09 related to employee stock-based compensation as described in Note 20 - Reconciliation of Previously Reported Amounts.

[3] Certain prior year balances were adjusted for certain errors in previously issued financial statements related to income taxes and for the adoption of ASU 2016-09 related to employee stock-based compensation. See Note 20 - Reconciliation of Previously Reported Amounts.