Summary of Significant Accounting Policies - Depreciation and Amortization (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Apr. 02, 2010
Property, Plant, and Equipment - Useful Life [Abstract]
Depreciation expense	$ 763	$ 692	$ 719
Building [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, maximum (in years)	40
Computers and related equipment [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, minimum (in years)	3
Property, plant and equipment useful life, maximum (in years)	5
Furniture and other equipment [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, minimum (in years)	2
Property, plant and equipment useful life, maximum (in years)	10
Leasehold Improvements [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Shorter of lease term or useful life
Software [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, minimum (in years)	2
Property, plant and equipment useful life, maximum (in years)	10
Outsourcing contract costs [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Contract life, excluding option years
Credit information files [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, minimum (in years)	10
Property, plant and equipment useful life, maximum (in years)	20
Customer Relationships [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Expected customer service life
Acquired contract related intangibles [Member]
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Contract life and first contract renewal, where applicable