Common Stock, Stock Option Plans and Stock Compensation Agreements - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding beginning of period	113,455	116,517	115,712
Options granted	19,287	22,491	20,484
Options exercised	(18,975)	(22,547)	(16,683)
Options canceled/forfeited	(2,461)	(3,006)	(2,996)
Options outstanding end of period	111,306	113,455	116,517
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options exercise price beginning of period	$ 83.16	$ 76.41	$ 70.37
Options granted, average exercise price (in dollars per share)	115.67	101.87	100.06
Options exercised, average exercise price (in dollars per share)	70.87	65.66	62.53
Options canceled/forfeited, average exercise price (in dollars per share)	101.40	92.83	82.22
Options exercise price end of period	$ 90.48	$ 83.16	$ 76.41
Aggregate intrinsic value	$ 5,480	$ 3,636	$ 3,065	$ 4,014