Derivative Instruments (Gain (Loss) on Derivatives) (Details) (Interest Rate Swap [Member], Designated as Hedging Instrument [Member], Fair Value Hedging [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 03, 2014	Sep. 27, 2013	Oct. 03, 2014	Sep. 27, 2013
Debt [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Hedged Item	$ 1	$ (5)	$ (4)	$ (5)
Other Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instrument, Gain (Loss)	$ (1)	$ 5	$ 4	$ 5