Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss Roll Forward (Details) - USD ($) $ in Millions		3 Months Ended								6 Months Ended
		Jun. 16, 2018		Mar. 24, 2018		Jun. 17, 2017		Mar. 25, 2017		Jun. 16, 2018		Jun. 17, 2017		Dec. 30, 2017		Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Post retirement Plans Taxes		$ 1,314		$ 1,332		$ 1,272		$ 1,275		$ 1,314		$ 1,272		$ 1,338		$ 1,280
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		(10,958)	[1]	(9,987)	[1]	(10,551)	[2]	(10,869)	[2]	(10,958)	[1]	(10,551)	[2]	(10,277)	[1]	(11,386)	[2]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax		123	[1]	75	[1]	32	[2]	56	[2]	123	[1]	32	[2]	47	[1]	83	[2]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax		(2,724)	[1]	(2,780)	[1]	(2,634)	[2]	(2,636)	[2]	(2,724)	[1]	(2,634)	[2]	(2,804)	[1]	(2,645)	[2]
Accumulated Other Comprehensive Income (Loss), Debt Securities, Available-for-sale, Adjustment, after Tax		(2)	[1]	(6)	[1]	(2)	[2]	68	[2]	(2)	[1]	(2)	[2]	(4)	[1]	64	[2]
Accumulated Other Comprehensive Income Loss Other		(19)	[1]	(19)	[1]	(19)	[2]	(35)	[2]	(19)	[1]	(19)	[2]	(19)	[1]	(35)	[2]
Accumulated Other Comprehensive Income (Loss), Net of Tax		(13,580)	[1]	(12,717)	[1]	(13,174)	[2]	(13,416)	[2]	(13,580)	[1]	(13,174)	[2]	$ (13,057)	[1]	$ (13,919)	[2]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(953)	[3]	288	[4]			513	[5]			297	[6]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(70)	[3]	93	[4]			(3)	[5]			20	[6]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax		28	[3]	(13)	[4]			(14)	[5]			(27)	[6]
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		4	[3]	(2)	[4]			9	[5]			18	[6]
Other Comprehensive Income (Loss), before Reclassifications, before Tax		0	[3]	0	[4]			0	[5]			0	[6]
OCI, before Reclassifications, before Tax, Attributable to Parent		(991)	[3]	366	[4]			505	[5]			308	[6]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax		0		0				0				0	[7]
Amounts reclassed out of AOCL CF Hedges	[7]											(53)
Amounts reclassified from AOCL Pension and PRM	[7]											32
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax		128		(55)		(53)		(33)		73		(86)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax		46		43		32		28		89		60
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		0		0		$ (99)		0		$ 0		(99)	[7]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0		0				0				0	[7]
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent		174		(12)				(5)				(120)	[7]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax		(953)		288				513				297
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax		58		38				(36)				(33)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		74		30				14				5
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax		4		(2)				9				(81)
Other Comprehensive Income, Other, Before Tax		0		0				0				0
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent		(817)		354				500				188
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax		(18)		2				4				21
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		(10)		(10)				9				9
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax		(18)		(6)				(5)				(3)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax		0						(5)				11
Other Comprehensive Income, Other, Taxes		0		0				0				16
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent		$ (46)		$ (14)				$ 3				$ 54

[1] Pension and retiree medical amounts are net of taxes of $1,338 million as of December 30, 2017, $1,332 million as of March 24, 2018 and $1,314 million as of June 16, 2018.

[2] Pension and retiree medical amounts are net of taxes of $1,280 million as of December 31, 2016, $1,275 million as of March 25, 2017 and $1,272 million as of June 17, 2017.

[3] Currency translation adjustment primarily reflects the depreciation in the Russian ruble, Brazilian real and Mexican peso.

[4] Currency translation adjustment primarily reflects the appreciation in the Russian ruble and Mexican peso.

[5] Currency translation adjustment primarily reflects the appreciation in the Russian ruble, Egyptian pound and Australian dolla

[6] Currency translation adjustment primarily reflects the appreciation in the euro and Russian ruble.

[7] Available-for-sale securities reflect a reclassification associated with the sale of our minority stake in Britvic.