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Fair Value Measurements - Financial Assets and Liabilities at Fair Value (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2023	Apr. 03, 2022	Jan. 01, 2023
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	$ 2,060
Derivatives designated as hedging instruments : Liabilities	2,902
Available-for-sale Securities, Equity Securities	505		$ 576
Available-for-sale Securities	8,942		10,487
Contingent consideration	1,142		1,120
Total Gross Assets	2,092		2,201
Credit Support Agreement (CSA)	(2,028)		(2,176)
Total Net Asset	64		25
Total Gross Liabilities	2,958		3,357
Credit Support Agreement (CSA)	(2,729)		(3,023)
Total Net Liabilities	229		334
Beginning Balance	1,120	$ 533
Changes in estimated fair value (6)	23	(47)
Additions	0	0
Payments	(1)	0
Ending Balance	1,142	$ 486
Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Available-for-sale Securities, Equity Securities	505		576
Available-for-sale Securities	0
Contingent consideration	0
Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	2,060		2,163
Derivatives designated as hedging instruments : Liabilities	2,902		3,289
Available-for-sale Securities, Equity Securities	0
Available-for-sale Securities	8,942
Contingent consideration	0
Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Available-for-sale Securities, Equity Securities	0
Available-for-sale Securities	0
Contingent consideration	1,142		1,120
Interest Rate Contract
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	1,399
Derivatives designated as hedging instruments : Liabilities	2,553
Interest Rate Contract | Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Interest Rate Contract | Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	1,399		1,534
Derivatives designated as hedging instruments : Liabilities	2,553		2,778
Interest Rate Contract | Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Forward foreign exchange contracts
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	661
Derivatives designated as hedging instruments : Liabilities	349
Derivatives not designated as hedging instruments : Assets	32
Derivatives not designated as hedging instruments : Liabilities	56
Forward foreign exchange contracts | Quoted prices in active markets for identical assets and liabilities Level 1
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Derivatives not designated as hedging instruments : Assets	0
Derivatives not designated as hedging instruments : Liabilities	0
Forward foreign exchange contracts | Significant other observable inputs Level 2
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	661		629
Derivatives designated as hedging instruments : Liabilities	349		511
Derivatives not designated as hedging instruments : Assets	32		38
Derivatives not designated as hedging instruments : Liabilities	56		68
Forward foreign exchange contracts | Significant unobservable inputs Level 3
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	0
Derivatives designated as hedging instruments : Liabilities	0
Derivatives not designated as hedging instruments : Assets	0
Derivatives not designated as hedging instruments : Liabilities	0
Other Noncurrent Liabilities | Auris Health
Financial assets and liabilities at fair value
Contingent consideration	1,138		1,116
Other Current Liabilities
Financial assets and liabilities at fair value
Contingent consideration	$ 4		$ 4

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