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. 25, 2016	Mar. 27, 2015
Numerator:
Net Earnings	$ 356	$ 442
Denominator:
Average Common Shares Outstanding (in shares)	962	991
Other Potentially Dilutive Common Shares (in shares)	1	1
Average Common Shares Outstanding, Assuming Dilution (in shares)	963	992
Net Earnings Per Share, Basic (in dollars per share)	$ 0.37	$ 0.45
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.37	$ 0.45