Stock-Based Compensation - Stock Option Activity (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014
Stock Option Activity [Abstract]
Options outstanding, Beginning Balance, Numbers of Shares	8.8	10.0	10.1
Granted, Number of Shares			1.2
Share Based Compensation Arrangement By Share Based Payment Award Options Assumed In Period	0.1
Exercised, Number of Shares	(1.0)	(1.1)	(1.3)
Options Canceled or Expired In Period	(0.2)	(0.1)
Options outstanding, Ending Balance, Numbers of Shares	7.7	8.8	10.0
Exercisable at April 3, 2015	3.5
Vested and expected to vest after April 3, 2015	7.6
Options outstanding, Beginning Balance, Weighted Average Exercise Price Per Share	$ 47.01	$ 45.16	$ 37.03
Granted, Weighted Average Exercise Price Per Share			$ 100.06
Share Based Compensation Options Assumed Weighted Average Exercise Price	$ 3.49
Exercised, Weighted Average Exercise Price Per Share	$ 32.26	$ 32.14	$ 31.04
Canceled or expired, Weighted Average Exercise Price Per Share	$ 58.23	$ 32.53
Options outstanding, Ending Balance, Weighted Average Exercise Price Per Share	$ 48.48	$ 47.01	$ 45.16
Exercisable at April 3, 2015, Weighted Average Exercise Price Per Share	$ 34.15
Vested and expected to vest after April 3, 2015, Weighted Average Exercise Price Per Share	$ 47.91
Options outstanding at April 3, 2015, Weighted Average Remaining Contractual Life (in years)	4 years 6 months 4 days
Exercisable at April 3, 2015, Weighted Average Remaining Contractual Life (in years)	3 years 2 months 19 days
Vested and expected to vest after April 3, 2015, Weighted Average Remaining Contractual Life (in years)	4 years 5 months 23 days
Options outstanding at April 3, 2015, Aggregate Intrinsic Value	$ 358
Exercisable at April 3, 2015, Aggregate Intrinsic Value	215
Vested and expected to vest after April 3, 2015, Aggregate Intrinsic Value	$ 355