Earnings Per Share - Computation of Basic Earnings Per Share, Assuming Dilution (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 24, 2016	Jun. 30, 2017	Jun. 24, 2016
Numerator:
Net Earnings	$ 510	$ 445	$ 872	$ 801
Dividend Equivalents on Restricted Stock	0	0	0	(1)
Net Earnings, Attributable to Common Shareholders	$ 510	$ 445	$ 872	$ 800
Denominator:
Average Common Shares Outstanding (in shares)	920	952	923	957
Other Potentially Dilutive Common Shares (in shares)	4	0	3	1
Average Common Shares Outstanding, Assuming Dilution (in shares)	924	952	926	958
Net Earnings Per Share, Basic (in dollars per share)	$ 0.55	$ 0.47	$ 0.94	$ 0.84
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.55	$ 0.47	$ 0.94	$ 0.84