Income Taxes - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			12 Months Ended
	Jan. 01, 2018	Dec. 22, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 30, 2016	Dec. 25, 2015
Operating Loss Carryforwards [Line Items]
Income tax adjustment			$ (62)	$ (21)	$ (10)
Earnings before income taxes			4,304	3,142	2,741
Non-cash credit to income tax expense		$ 3,500	0	3,506	0
Non-cash credit to income tax expense amount per share		$ 3.81
U.S. corporate tax rate (as a percent)	21.00%
State income taxes expense (benefit)			(112)	(102)	(83)
Unrecognized tax benefits			12	24	25	$ 23
Amount of unrecognized tax benefits that may favorably effect the effective income tax rate			9	19	16
Income Tax Uncertainties [Abstract]
(Reduction) increase to income tax reserves due to interest and penalties of prior year tax positions			(3)	3	2
Previously recorded liabilities for interest and penalties of prior period tax positions			$ 2	$ 6	6
Federal and State Legislative
Operating Loss Carryforwards [Line Items]
State income taxes expense (benefit)					$ 7
Affiliated Entity
Operating Loss Carryforwards [Line Items]
Non-cash credit to income tax expense		$ 142
Non-cash credit to income tax expense amount per share		$ 0.10