Derivative Instruments and Fair Value Measurements Derivative Instruments and Fair Value Measurements - Schedule of Effect of Fair Value and Cash Flow Hedge Accounting on Consolidated Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Cost of goods sold	$ 2,293	$ 2,074	$ 6,593	$ 6,112
Interest Expense, Debt	72	64	213	188
Foreign currency exchange contracts | COGS | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income				1
Foreign currency exchange contracts | Interest expense | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income	0	0	0	0
Interest rate contracts | COGS | Designated as Hedging Instrument | Fair Value Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items				0
Derivatives designated as hedging instruments				0
Interest rate contracts | COGS | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income				0
Interest rate contracts | Interest expense | Designated as Hedging Instrument | Fair Value Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Hedged items	9	0	34	6
Derivatives designated as hedging instruments	(9)	4	(30)	8
Interest rate contracts | Interest expense | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into income	$ (2)	$ (3)	$ (6)	$ (8)