Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss Roll Forward (Details) - USD ($) $ in Millions		3 Months Ended										6 Months Ended		8 Months Ended
		Sep. 08, 2018		Jun. 16, 2018		Mar. 24, 2018		Sep. 09, 2017		Mar. 25, 2017		Jun. 17, 2017		Sep. 08, 2018		Sep. 09, 2017		Dec. 30, 2017		Dec. 31, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax		$ (4)						$ (5)						$ (12)		$ (16)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax		(51)						(38)						(148)		(109)
Settlement/Curtailment - Reclassifications from AOCI		9						2						9		2
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Post retirement Plans Taxes		1,296		$ 1,314		$ 1,332		1,266		$ 1,275		$ 1,272		1,296		1,266		$ 1,338		$ 1,280
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		(11,686)	[1]	(10,958)	[1]	(9,987)	[1]	(10,231)	[2]	(10,869)	[2]	(10,551)	[2]	(11,686)	[1]	(10,231)	[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		122	[1]	123	[1]	75	[1]	0	[2]	56	[2]	32	[2]	122	[1]	0	[2]	47	[1]	83	[2]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax		(2,670)	[1]	(2,724)	[1]	(2,780)	[1]	(2,625)	[2]	(2,636)	[2]	(2,634)	[2]	(2,670)	[1]	(2,625)	[2]	(2,804)	[1]	(2,645)	[2]
Accumulated Other Comprehensive Income (Loss), Debt Securities, Available-for-sale, Adjustment, after Tax		0	[1]	(2)	[1]	(6)	[1]	0	[2]	68	[2]	(2)	[2]	0	[1]	0	[2]	(4)	[1]	64	[2]
Accumulated Other Comprehensive Income Loss Other		(19)	[1]	(19)	[1]	(19)	[1]	(19)	[2]	(35)	[2]	(19)	[2]	(19)	[1]	(19)	[2]	(19)	[1]	(35)	[2]
Accumulated Other Comprehensive Income (Loss), Net of Tax		(14,253)	[1]	(13,580)	[1]	(12,717)	[1]	(12,875)	[2]	(13,416)	[2]	(13,174)	[2]	(14,253)	[1]	(12,875)	[2]	$ (13,057)	[1]	$ (13,919)	[2]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(730)	[3]	(953)	[3]	288	[4]	277	[5]	513	[6]	297	[5]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(11)	[3]	(70)	[3]	93	[4]	53	[5]	(3)	[6]	20	[5]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax		16	[3]	28	[3]	(13)	[4]	(20)	[5]	(14)	[6]	(27)	[5]
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		2	[3]	4	[3]	(2)	[4]	2	[5]	9	[6]	18	[5]
Other Comprehensive Income (Loss), before Reclassifications, before Tax		0	[3]	0	[3]	0	[4]	0	[5]	0	[6]	0	[5]
OCI, before Reclassifications, before Tax, Attributable to Parent		(723)	[3]	(991)	[3]	366	[4]	312	[5]	505	[6]	308	[5]
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]	0		0	[7]
Amounts reclassed out of AOCL CF Hedges	[7]							(97)				(53)
Amounts reclassified from AOCL Pension and PRM	[7]							35				32
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax		7		128		(55)		(97)		(33)				80		(183)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax		56		46		43		35		28				145		95
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		0		0		0		0	[7]	0		(99)	[7]	0		(99)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0		0		0		0	[7]	0		0	[7]
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent		63		174		(12)		(62)	[7]	(5)		(120)	[7]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax		(730)		(953)		288		277		513		297
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax		(4)		58		38		(44)		(36)		(33)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		72		74		30		15		14		5
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax		2		4		(2)		2		9		(81)
Other Comprehensive Income, Other, Before Tax		0		0		0		0		0		0
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent		(660)		(817)		354		250		500		188
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax		2		(18)		2		43		4		21
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		3		(10)		(10)		12		9		9
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax		(18)		(18)		(6)		(6)		(5)		(3)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax		0		0						(5)		11
Other Comprehensive Income, Other, Taxes		0		0		0		0		0		16
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent		(13)		$ (46)		$ (14)		49		$ 3		$ 54
Cash Flow Hedging [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[8]	(7)						97						(80)		183
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(14)						(65)						64		(114)
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[8]	10						(5)						(6)		6
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		10						$ (47)						40		(83)
Cash Flow Hedging [Member] | Revenue Axis [Domain] | Foreign Exchange Forward [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ 1												$ 1		$ 0

[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, $1,314 million as of June 16, 2018 and $1,296 million as of September 8, 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, $1,272 million as of June 17, 2017 and $1,266 million as of September 9, 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 euro and Russian ruble.

[6] Currency translation adjustment primarily reflects the appreciation in the Russian ruble, Egyptian pound and Australian dollar.

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

[8] Foreign exchange derivative losses/gains are primarily included in cost of sales. Interest rate derivative losses/gains are included in interest expense. Commodity derivative losses/gains are included in either cost of sales or selling, general and administrative expenses, depending on the underlying commodity.