Fair Value (Textual) (Details) (USD $)	9 Months Ended
	Dec. 28, 2012	Dec. 28, 2012 Carrying amount [Member]	Mar. 30, 2012 Carrying amount [Member]	Dec. 28, 2012 Fair Value [Member]	Mar. 30, 2012 Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Transfers between Level 1 and Level 2	$ 0
Impairment charges during the period	0
Long-term debt, excluding capital leases		2,012,000,000	1,073,000,000	2,237,000,000	1,190,000,000
Accounts receivable with customers involved in bankruptcy proceedings	16,000,000
Allowance for doubtful accounts with customers involved in bankruptcy proceedings	11,000,000
Other assets with customers in bankruptcy proceedings	$ 1,000,000