Stock-Based Compensation - Stock Option Activity (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 28, 2012 Y	Sep. 28, 2012	Dec. 28, 2012 Y
Options outstanding, Beginning Balance, Numbers of Shares	16.5	15.8	15.8
Granted, Number of Shares	0.1	3.0
Exercised, Number of Shares	(1.2)	(2.2)
Canceled or expired, Number of Shares	(0.1)	(0.1)
Options outstanding, Ending Balance, Numbers of Shares	15.3	16.5	15.3
Options outstanding, Beginning Balance, Weighted Average Exercise Price Per Share	$ 26.52	$ 21.89	$ 21.89
Exercisable at December 28, 2012, Number of Shares	6.0		6.0
Granted, Weighted Average Exercise Price Per Share	$ 37.04	$ 43.10
Vested and expected to vest after December 28, 2012, Number of Shares	15.1		15.1
Exercised, Weighted Average Exercise Price Per Share	$ 18.56	$ 16.18
Canceled or expired, Weighted Average Exercise Price Per Share	$ 33.88	$ 23.00
Options outstanding, Ending Balance, Weighted Average Exercise Price Per Share	$ 27.14	$ 26.52	$ 27.14
Options outstanding at December 28, 2012, Weighted Average Remaining Contractual Life (in years)			4 years 7 months 6 days
Exercisable at December 28, 2012, Weighted Average Exercise Price Per Share	$ 23.22		$ 23.22
Exercisable at December 28, 2012, Weighted Average Remaining Contractual Life (in years)	3.2		3.2
Vested and expected to vest after December 28, 2012, Weighted Average Exercise Price Per Share	$ 27.00		$ 27.00
Vested and expected to vest after December 28, 2012, Weighted Average Remaining Contractual Life (in years)	4.6		4.6
Options outstanding at December 28, 2012, Aggregate Intrinsic Value	$ 224		$ 224
Exercisable at December 28, 2012, Aggregate Intrinsic Value	110		110
Vested and expected to vest after December 28, 2012, Aggregate Intrinsic Value	$ 223		$ 223