Accumulated Other Comprehensive Loss - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 24, 2018		Mar. 25, 2017		Dec. 30, 2017	[1]	Dec. 31, 2016	[2]
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax		$ (9,987)	[1]	$ (10,869)	[2]	$ (10,277)		$ (11,386)
Losses/(gains) on cash flow hedges:
Total before tax		(55)		(33)
Tax amounts		14		11
Net gains after tax		(41)		(22)
Amortization of pension and retiree medical items:
Amortization of prior service credits		(4)		(6)
Net actuarial losses		47		34
Total before tax		43		28
Tax amounts		(10)		(9)
Net losses after tax		33		19
Total net gains reclassified, net of tax		(8)		(3)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		0		0
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax		75	[1]	56	[2]	47		83
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax		(2,780)	[1]	(2,636)	[2]	(2,804)		(2,645)
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax		(6)	[1]	68	[2]	(4)		64
Accumulated Other Comprehensive Income Loss Other		(19)	[1]	(35)	[2]	(19)		(35)
Accumulated Other Comprehensive Income (Loss), Net of Tax		(12,717)	[1]	(13,416)	[2]	$ (13,057)		$ (13,919)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		288		513	[3]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		93		(3)	[3]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment and Tax		(13)		(14)	[3]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax		(2)		9	[3]
Other Comprehensive Income (Loss), before Reclassifications, before Tax		0		0	[3]
OCI, before Reclassifications, before Tax, Attributable to Parent		366		505	[3]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax		0		0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		0		0
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent		(12)		(5)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax		288		513
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax		38		(36)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax		30		14
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax		(2)		9
Other Comprehensive Income, Other, Before Tax		0		0
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent		354		500
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax		2		4
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax		(10)		9
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax		(6)		(5)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax				(5)
Other Comprehensive Income, Other, Taxes		0		0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent		(14)		3
Cash Flow Hedges
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[4]	(55)		(33)
Cash Flow Hedges | Foreign exchange contracts
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[4]	6		(5)
Cash Flow Hedges | Foreign exchange contracts | Cost of Sales
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		6		(5)
Cash Flow Hedges | Interest rate derivatives
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[4]	(62)		(30)
Cash Flow Hedges | Interest rate derivatives | Interest Expense
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		(62)		(30)
Cash Flow Hedges | Commodity contracts
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[4]	1		2
Cash Flow Hedges | Commodity contracts | Cost of Sales
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		2		$ 2
Cash Flow Hedges | Commodity contracts | Selling, General and Administrative Expenses
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		$ (1)

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

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

[3] (b)Currency translation adjustment primarily reflects the appreciation in the Russian ruble, Egyptian pound and Australian dollar.

[4] 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.