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. 24, 2016	Jun. 26, 2015	Jun. 24, 2016	Jun. 26, 2015
Numerator:
Net Earnings	$ 445	$ 553	$ 801	$ 995
Dividend Equivalents on Restricted Stock	0	0	(1)	0
Net Earnings, Attributable to Common Shareholders	$ 445	$ 553	$ 800	$ 995
Denominator:
Average Common Shares Outstanding (in shares)	952	988	957	989
Other Potentially Dilutive Common Shares (in shares)	0	1	1	1
Average Common Shares Outstanding, Assuming Dilution (in shares)	952	989	958	990
Net Earnings Per Share, Basic (in dollars per share)	$ 0.47	$ 0.56	$ 0.84	$ 1.01
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.47	$ 0.56	$ 0.84	$ 1.00