Earnings Per Share - Computation of Basic Earnings Per Share, Assuming Dilution (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 23, 2016	Sep. 30, 2017	Sep. 23, 2016
Numerator:
Net Earnings	$ 459	$ 455	$ 1,331	$ 1,256
Dividend Equivalents on Restricted Stock	0	0	(1)	(1)
Net Earnings, Attributable to Common Shareholders	$ 459	$ 455	$ 1,330	$ 1,255
Denominator:
Average Common Shares Outstanding (in shares)	902	942	916	952
Other Potentially Dilutive Common Shares (in shares)	4	1	3	1
Average Common Shares Outstanding, Assuming Dilution (in shares)	906	943	919	953
Net Earnings Per Share, Basic (in dollars per share)	$ 0.51	$ 0.48	$ 1.45	$ 1.32
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.51	$ 0.48	$ 1.45	$ 1.32