Financial Instruments Hedging Instruments - Notional Amounts - USD ($) $ in Millions		3 Months Ended
		Mar. 25, 2017	Mar. 19, 2016	Dec. 31, 2016
Net Investment Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 800		$ 800
Commodity Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount		$ 900		$ 800
Interest Rate Contract [Member]
Derivative [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		42.00%		38.00%
Derivative, Notional Amount		$ 11,200		$ 11,200
Fair Value/Non-designated Hedges
Derivative [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax		(20)	$ 32
Fair Value/Non-designated Hedges | Commodity Contract [Member]
Derivative [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	(3)	(4)
Fair Value/Non-designated Hedges | Foreign Exchange Forward [Member]
Derivative [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	5	(33)
Fair Value/Non-designated Hedges | Interest Rate Contract [Member]
Derivative [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax	[1]	(22)	69
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(21)	0
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		33	21
Cash Flow Hedging [Member] | Net Investment Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(18)
Cash Flow Hedging [Member] | Commodity Contract [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(2)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[2]	(2)	(3)
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(20)	(16)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[2]	5	21
Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		19	16
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	[2]	$ 30	$ 3

[1] Foreign exchange derivative losses/gains are primarily included in selling, general and administrative expenses. Interest rate derivative losses/gains are primarily from fair value hedges and are included in interest expense. These losses/gains are substantially offset by decreases/increases in the value of the underlying debt, which are also 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.

[2] 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.