Fair Value Measurements and Fair Value of Financial Instruments - Derivative Instruments, Gains & Losses (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Currency exchange contracts \| Included in cost of product revenues \| Derivatives Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative	$ 2	$ 3	$ (1)	$ 15
Currency exchange contracts \| Included in other income/(expense) \| Derivatives Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative	(6)	20	(8)	32
Derivatives designated as cash flow hedges \| Interest rate swaps \| Amount reclassified from accumulated other comprehensive items to interest expense \| Derivatives Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedge reclassified from AOCI	(1)	(1)	(6)	(3)
Financial instruments designated as net investment hedges \| Foreign currency-denominated debt and other payables \| Derivatives Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on currency translation adjustment	364	658	158	1,691
Financial instruments designated as net investment hedges \| Cross-currency interest rate swaps \| Derivatives Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on currency translation adjustment	(56)	46	(6)	120
Gain (loss) on derivative	$ 35	$ 6	$ 68	$ 12

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, before tax, of increase (decrease) in the cumulative translation adjustment from gain (loss) on foreign currency derivatives that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

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