Restructuring And Transition (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012 Other Exit And Disposal Costs [Member]		Sep. 28, 2012 Transition And Other Related Costs [Member]		Sep. 28, 2012 Restructuring And Transition [Member]		Sep. 28, 2012 Other Current Liabilities [Member]	Mar. 30, 2012 Other Current Liabilities [Member]	Sep. 28, 2012 Other Long-Term Obligations [Member]	Mar. 30, 2012 Other Long-Term Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Balance, beginning			$ 16		$ 16						$ 6	$ 8	$ 7	$ 8
Costs, Net of Adjustments					2	[1]
Transition and other related costs							56	[1]
Total restructuring and transition	23	8	58	20					58	[1]
Cash Payments					(5)
Balance, ending	13		13		13						6	8	7	8
Severance costs			40
Implementation of resource planning system cost			$ 16
Excess facility obligation expected to be paid by fiscal period			2018

[1] Total net adjustments were not material for the six months ended September 28, 2012. Included in transition and other related costs is $40 million of severance costs and $16 million in consulting costs associated with the planning and design phase of implementing a new enterprise resource planning system. Restructuring and transition costs are included in our Other segment.