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. 29, 2019	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Outstanding Shares
Options outstanding beginning of period	109,652	111,306	113,455
Options granted	19,745	17,115	19,287
Options exercised	(14,785)	(16,228)	(18,975)
Options canceled/forfeited	(2,975)	(2,541)	(2,461)
Options outstanding end of period	111,637	109,652	111,306
Weighted Average Exercise Price
Options exercise price beginning of period	$ 98.29	$ 90.48	$ 83.16
Options granted, average exercise price (in dollars per share)	131.94	129.51	115.67
Options exercised, average exercise price (in dollars per share)	82.43	75.44	70.87
Options canceled/forfeited, average exercise price (in dollars per share)	125.11	112.90	101.40
Options exercise price end of period	$ 105.63	$ 98.29	$ 90.48
Aggregate intrinsic value	$ 4,478	$ 3,214	$ 5,480	$ 3,636