Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 30, 2016	Sep. 23, 2016	Jun. 24, 2016	Mar. 25, 2016	Dec. 25, 2015	Sep. 25, 2015	Jun. 26, 2015	Mar. 27, 2015	Dec. 30, 2016	Dec. 25, 2015	Dec. 26, 2014
Selected Quarterly Financial Information [Abstract]
Revenue	$ 3,037	$ 2,710	$ 2,704	$ 2,618	$ 2,781	$ 2,939	$ 3,064	$ 3,027	$ 11,069	$ 11,811	$ 12,669
Operating Income	1,004	841	840	704	791	933	1,017	843	3,389	3,584	3,613
Net Earnings	$ 458	$ 455	$ 445	$ 356	$ 466	$ 507	$ 553	$ 442	$ 1,714	$ 1,968	$ 1,927
Net Earnings Per Share, Basic (in dollars per share)	$ 0.49	$ 0.48	$ 0.47	$ 0.37	$ 0.48	$ 0.52	$ 0.56	$ 0.45	$ 1.81	$ 2.00	$ 1.93
Net Earnings Per Share, Assuming Dilution (in dollars per share)	$ 0.49	$ 0.48	$ 0.47	$ 0.37	$ 0.48	$ 0.52	$ 0.56	$ 0.45	$ 1.81	$ 2.00	$ 1.92