Earnings Per Share (Schedule Of Components Of Earnings Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 02, 2015	Dec. 27, 2013	Jan. 02, 2015	Dec. 27, 2013
Earnings Per Share [Abstract]
Net income	$ 222	$ 283	$ 702	$ 681
Net income per share — basic (in dollars per share)	$ 0.32	$ 0.41	$ 1.02	$ 0.98
Net income per share — diluted (in dollars per share)	$ 0.32	$ 0.40	$ 1.01	$ 0.96
Weighted-average outstanding common shares — basic (in shares)	689	696	690	697
Dilutive potential shares from stock-based compensation (in shares)	8	6	7	9
Weighted-average shares outstanding — diluted (in shares)	697	702	697	706
Anti-dilutive weighted-average shares (in shares)	0	4	1	5