Accumulated Other Comprehensive Loss - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 17, 2017	Jun. 11, 2016	Jun. 17, 2017	Jun. 11, 2016
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		$ (89)	$ 0	$ (89)	$ 0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax		10	0	10	0
Losses/(gains) on cash flow hedges:
Total before tax		(53)	(8)	(86)	(29)
Tax amounts		19	2	30	7
Net gains after tax		(34)	(6)	(56)	(22)
Amortization of pension and retiree medical items:
Amortization of prior service credits (a)	[1]	(5)	(8)	(11)	(17)
Net actuarial losses	[1]	37	48	71	94
Settlement/Curtailment - Reclassifications from AOCI	[1]	0	6	0	6
Total before tax		32	46	60	83
Tax amounts		(9)	(14)	(18)	(26)
Net losses after tax		23	32	42	57
Total net (gains)/losses reclassified, net of tax		(100)	26	(103)	35
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax		(99)	0	(99)	0
Cash Flow Hedges
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		(53)	(8)	(86)	(29)
Cash Flow Hedges | Foreign exchange contracts
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[2]	(6)	(12)	(11)	(33)
Cash Flow Hedges | Foreign exchange contracts | Sales Revenue, Net [Member]
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges			1		1
Cash Flow Hedges | Foreign exchange contracts | Cost of Sales
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		(6)	(13)	(11)	(34)
Cash Flow Hedges | Interest rate derivatives
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[2]	(48)	1	(78)	(2)
Cash Flow Hedges | Interest rate derivatives | Interest Expense
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		(48)	1	(78)	(2)
Cash Flow Hedges | Commodity contracts
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges	[2]	1	3	3	6
Cash Flow Hedges | Commodity contracts | Cost of Sales
Losses/(gains) on cash flow hedges:
Losses/(gains) on cash flow hedges		2	2	4	3
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)	$ 3

[1] These items are included in the components of net periodic benefit cost for pension and retiree medical plans (see Note 7 for additional details).

[2] 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.