Accumulated Other Comprehensive Loss - Additional Information (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 Adjustments out of Accumulated Other Comprehensive Income [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]
Losses/(gains) on cash flow hedges:
Total before tax		128		(55)		(53)		(33)		73		(86)
Tax amounts		(31)				19				(17)		30
Net losses/(gains) after tax		97				(34)				56		(56)
Amortization of pension and retiree medical items:
Amortization of prior service credits		(4)				(5)				(8)		(11)
Net actuarial losses		50				37				97		71
Total before tax		46		43		32		28		89		60
Tax amounts		(10)				(9)				(20)		(18)
Net losses after tax		36				23				69		42
Total net losses/(gains) reclassified, net of tax		133				(100)				125		(103)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		0		0		(99)		0		0		(99)	[3]
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)	[4]	288	[5]			513	[6]			297	[7]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(70)	[4]	93	[5]			(3)	[6]			20	[7]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax		(28)	[4]	13	[5]			14	[6]			27	[7]
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax		4	[4]	(2)	[5]			9	[6]			18	[7]
Other Comprehensive Income (Loss), before Reclassifications, before Tax		0	[4]	0	[5]			0	[6]			0	[7]
OCI, before Reclassifications, before Tax, Attributable to Parent		(991)	[4]	366	[5]			505	[6]			308	[7]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax		0		0				0				0	[3]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0		0				0				0	[3]
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent		174		(12)				(5)				(120)	[3]
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
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax		0				10				0		10
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		0				(89)				0		(89)
Cash Flow Hedges
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[8]	128				(53)				73		(86)
Amortization of pension and retiree medical items:
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(6)				(28)				78		(49)
Cash Flow Hedges | Foreign exchange contracts
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[8]	10				(6)				16		(11)
Amortization of pension and retiree medical items:
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		35				(16)				30		(36)
Cash Flow Hedges | Foreign exchange contracts | Cost of Sales
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		10				(6)				16		(11)
Cash Flow Hedges | Interest rate derivatives
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[8]	117				(48)				55		(78)
Amortization of pension and retiree medical items:
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		(105)				35				(9)		54
Cash Flow Hedges | Interest rate derivatives | Interest Expense
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		117				(48)				55		(78)
Cash Flow Hedges | Commodity contracts
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[8]	1				1				2		3
Amortization of pension and retiree medical items:
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		0				1				2		(1)
Cash Flow Hedges | Commodity contracts | Cost of Sales
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		$ 1				2				3		4
Cash Flow Hedges | Commodity contracts | Selling, General and Administrative Expenses
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges						$ (1)				$ (1)		$ (1)

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

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

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

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

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

[8] Foreign exchange derivative losses/gains are 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.