Fair Value Measurements - Financial Assets and Liabilities at Fair Value (Details) - USD ($) $ in Millions	9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Jan. 01, 2023
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	$ 2,435
Derivatives designated as hedging instruments : Liabilities	4,246
Available-for-sale Securities, Equity Securities	4,023		$ 576
Available-for-sale Securities	8,407		10,487
Contingent consideration	1,178		1,120
Total Gross Assets	2,493		2,201
Credit Support Agreement (CSA)	(2,472)		(2,176)
Total Net Asset	21		25
Total Gross Liabilities	4,293		3,357
Credit Support Agreement (CSA)	(4,174)		(3,023)
Total Net Liabilities	119		334
Beginning Balance	1,120	$ 533
Changes in estimated fair value (6)	62	(85)
Additions	0	89
Payments	(4)	(12)
Ending Balance	1,178	$ 525
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	4,023		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	2,435		2,163
Derivatives designated as hedging instruments : Liabilities	4,246		3,289
Available-for-sale Securities, Equity Securities	0
Available-for-sale Securities	8,407
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	1,178		1,120
Interest Rate Contract
Financial assets and liabilities at fair value
Derivatives designated as hedging instruments : Assets	1,534
Derivatives designated as hedging instruments : Liabilities	3,669
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	1,534		1,534
Derivatives designated as hedging instruments : Liabilities	3,669		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	901
Derivatives designated as hedging instruments : Liabilities	577
Derivatives not designated as hedging instruments : Assets	58
Derivatives not designated as hedging instruments : Liabilities	47
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	901		629
Derivatives designated as hedging instruments : Liabilities	577		511
Derivatives not designated as hedging instruments : Assets	58		38
Derivatives not designated as hedging instruments : Liabilities	47		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	$ 1,172		$ 1,116