Income per Common Share - Computation of Basic and Diluted Income Per Common Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jan. 02, 2015		Dec. 27, 2013		Jan. 02, 2015		Dec. 27, 2013
Earnings Per Share [Abstract]
Net income	$ 438		$ 430		$ 861		$ 925
Weighted average shares outstanding:
Basic	233		236		233		236
Employee stock options and other	5		7		6		7
Diluted	238		243		239		243
Income per common share:
Basic	$ 1.88		$ 1.82		$ 3.70		$ 3.92
Diluted	$ 1.84		$ 1.77		$ 3.60		$ 3.81
Anti-dilutive potential common shares excluded*	1	[1]	2	[1]	2	[1]	1	[1]

[1] For purposes of computing diluted income per common share, certain potentially dilutive securities have been excluded from the calculation because their effect would have been anti-dilutive.