Restructuring Costs (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 28, 2014		Mar. 29, 2013		Mar. 30, 2012
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	$ 11	[1]	$ 0	[1]
Restructuring costs	76		264		140
Costs not affecting restructuring liability	0	[1],[2]	0	[1],[2]
Cash paid	(11)	[1]	(6)	[1]
Other	0	[1],[3]	0	[1],[3]
Restructuring liability at end of period	0	[1]	11	[1]	0	[1]
Restructuring liability	85		190
Increase (Decrease) in Accrued Liabilities	83		186
Increase (Decrease) in Other Accrued Liabilities	2		4
Liabilities of Disposal Group, Including Discontinued Operation	1
GBS Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	46		87		66
GIS Segment [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	28		142		73
NPS [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	2		13		1
Corporate [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0		22		0
Restructuring Plan Fiscal 2013 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	176		0
Restructuring costs	74		233
Costs not affecting restructuring liability	(22)	[2]	(22)	[2]
Cash paid	(149)		(33)
Other	4	[3]	(2)	[3]
Restructuring liability at end of period	83		176
Restructuring Plan Fiscal 2013 Plan [Member] | Pension Benefit Augmentation [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	22		21
Restructuring Plan Fiscal 2013 Plan [Member] | Workforce reductions
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	155		0
Restructuring costs	63		206
Costs not affecting restructuring liability	(22)	[2]	(22)	[2]
Cash paid	(130)		(27)
Other	4	[3]	(2)	[3]
Restructuring liability at end of period	70		155
Restructuring Plan Fiscal 2013 Plan [Member] | Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	10		0
Restructuring costs	11		10
Costs not affecting restructuring liability	0	[2]	0	[2]
Cash paid	(8)		0
Other	0	[3]	0	[3]
Restructuring liability at end of period	13		10
Restructuring Plan Fiscal 2013 Plan [Member] | Professional Fees [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs			17
Restructuring Plan Fiscal 2013 Plan [Member] | Other [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0	[1]	17	[1]
Restructuring Plan Fiscal 2012 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	14		119
Restructuring costs	2		31		140
Costs not affecting restructuring liability	0	[2]	(1)	[2]
Cash paid	(13)		(133)
Other	(1)	[4]	(2)	[5]
Restructuring liability at end of period	2		14		119
Restructuring Plan Fiscal 2012 Plan [Member] | Pension Benefit Augmentation [Member]
Restructuring Reserve [Roll Forward]
Restructuring costs	0		1		20
Restructuring Plan Fiscal 2012 Plan [Member] | Workforce reductions
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	9		110
Restructuring costs	2		31
Costs not affecting restructuring liability	0	[2]	(1)	[2]
Cash paid	(10)		(129)
Other	(1)	[4]	(2)	[5]
Restructuring liability at end of period	0		9
Restructuring Plan Fiscal 2012 Plan [Member] | Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	5		9
Restructuring costs	0		0
Costs not affecting restructuring liability	0	[2]	0	[2]
Cash paid	(3)		(4)
Other	0	[4]	0	[5]
Restructuring liability at end of period	$ 2		$ 5

[1] Other direct costs associated with the restructuring program.

[2] Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.

[3] Foreign currency translation adjustments.

[4] Foreign currency translation adjustments and reclassification of $1 million to liabilities held for sale related to the small software business that CSC has committed to sell (see Note 4).

[5] Foreign currency translation adjustments