Derivative Instruments and Fair Value Measurements - Effect of Derivative Instruments on the Consolidated Statements of Income and Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income		$ 20	$ (19)	$ 11	$ (11)
Not Designated as Hedging Instrument | Foreign currency exchange contracts | COGS
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income		1	0	1	0
Not Designated as Hedging Instrument | Foreign currency exchange contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income		5	(1)	7	(2)
Not Designated as Hedging Instrument | Interest rate contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income				0	(4)
Not Designated as Hedging Instrument | Commodity contracts | COGS
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income		13	(18)	2	(5)
Not Designated as Hedging Instrument | Commodity contracts | SGA
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income		1	0	1	0
Fair Value Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	[1]	(2)	6	3	11
Fair Value Hedges | Foreign currency exchange contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	[1]	0	1	(4)	2
Fair Value Hedges | Interest rate contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	[1]	(2)	5	7	9
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		(4)	(23)	4	(24)
Gain (loss) reclassified from AOCI into income		3	1	7	11
Gain (loss) recognized in income	[1]	(2)	(2)	(2)	(2)
Cash Flow Hedging | Foreign currency exchange contracts, one
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		2	(8)	19	(3)
Cash Flow Hedging | Foreign currency exchange contracts, one | COGS
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income		9	1	16	2
Cash Flow Hedging | Foreign currency exchange contracts, one | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	[1]	(2)	(2)	(2)	(2)
Cash Flow Hedging | Foreign currency exchange contracts, two
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		(6)	1	(6)	1
Cash Flow Hedging | Foreign currency exchange contracts, two | SGA
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income		(2)	2	(2)	3
Cash Flow Hedging | Foreign currency exchange contracts, two | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	[1]	0	0	0	0
Cash Flow Hedging | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		0	(16)	(9)	(23)
Gain (loss) recognized in income	[1]	0	0	0	0
Cash Flow Hedging | Interest rate contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income		(1)	0	(1)	9
Cash Flow Hedging | Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		0	0	0	1
Cash Flow Hedging | Commodity contracts | COGS
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income		(3)	(2)	(6)	(3)
Cash Flow Hedging | Commodity contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	[1]	0	0	0	0
Net Investment Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		(14)	3	43	0
Net Investment Hedging | Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		0	3
Net Investment Hedging | Foreign currency denominated long-term debt
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in AOCI		$ (14)	$ 0	$ 43	$ 0

[1] Includes the ineffective portion and amount excluded from effectiveness testing.