Earnings Per Share - Computation of Basic Earnings Per Share, Assuming Dilution (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 25, 2016
Numerator:
Net Earnings	$ 362	$ 356
Denominator:
Average Common Shares Outstanding (in shares)	927	962
Other Potentially Dilutive Common Shares (in shares)	2	1
Average Common Shares Outstanding, Assuming Dilution (in shares)	929	963
Net Earnings Per Share, Basic (in dollars per share)	$ 0.39	$ 0.37
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.39	$ 0.37