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
	Dec. 28, 2012	Dec. 30, 2011	Dec. 28, 2012	Dec. 30, 2011
Net Income Loss Per Common Share [Line Items]
Net income	$ 335	$ 145	$ 854	$ 384
Weighted average shares outstanding:
Basic	242	234	244	234
Employee stock options and other	4	3	5	3
Diluted	246	237	249	237
Income per common share:
Basic	$ 1.38	$ 0.62	$ 3.50	$ 1.64
Diluted	$ 1.36	$ 0.61	$ 3.43	$ 1.62
Anti-dilutive potential common shares excluded*	7	7	6	5