Financial Instruments - Fair Value of Derivative Financial Instruments and Related Notional Amounts (Details) - USD ($) $ in Millions		Oct. 03, 2021	Dec. 31, 2020
Derivative [Line Items]
Asset		$ 720	$ 373
Liability		823	1,100
Derivatives designated as hedging instruments [Member]
Derivative [Line Items]
Asset		592	280
Liability		743	1,005
Derivatives designated as hedging instruments [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Notional	[1]	27,798	24,369
Asset	[1]	568	145
Liability	[1]	743	1,005
Derivatives designated as hedging instruments [Member] | Interest rate contracts [Member]
Derivative [Line Items]
Notional		1,250	1,950
Asset		24	135
Liability		0	0
Derivatives not designated as hedging instruments [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Notional		24,150	15,063
Asset		129	94
Liability		81	95
Inventory sales [Member] | Derivatives designated as hedging instruments [Member] | Foreign exchange contracts [Member]
Derivative [Line Items]
Notional	[1]	$ 4,900	$ 5,000

[1] The notional amount of outstanding foreign exchange contracts hedging our intercompany forecasted inventory sales was $4.9 billion as of October 3, 2021 and $5.0 billion as of December 31, 2020.