CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Per Share data	3 Months Ended
	Jul. 01, 2011	Jul. 02, 2010
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Revenues	$ 4,033	$ 3,910
Costs of services (excludes depreciation and amortization)	3,365	3,170
Selling, general and administrative	264	243
Depreciation and amortization	278	256
Interest expense	42	41
Interest income	(12)	(8)
Other (income) expense, net	(5)	(3)
Total costs and expenses	3,932	3,699
Income from continuing operations before taxes	101	211
Taxes on income	(85)	66
Income from continuing operations	186	145
(Loss) income from discontinued operations, net of taxes	(1)	3
Net income	185	148
Less: Net income attributable to noncontrolling interest, net of tax	2	5
Net income attributable to CSC common shareholders	$ 183	$ 143
Earnings per common share - Basic:
Continuing operations (per share)	$ 1.19	$ 0.91
Discontinued operations	$ (0.01)	$ 0.02
Basic EPS (in dollars per share)	$ 1.18	$ 0.93
Earnings per common share - Diluted:
Continuing operations	$ 1.18	$ 0.89
Discontinued operations	$ (0.01)	$ 0.02
Diluted EPS (in dollars per share)	$ 1.17	$ 0.91
Cash dividend per common share	$ 0.20	$ 0.15