Fair Value Measurements and Fair Value of Financial Instruments Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Contingent Consideration [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 149	$ 53	$ 70	$ 55
Acquisitions (including assumed balances)			179
Payments	(1)	(1)	(43)	(3)
Changes in fair value included in earnings	23	(8)	(35)	(8)
Ending Balance	$ 171	$ 44	$ 171	$ 44
Fair Value, Recurring Basis, Unobservable Input Reconciliation, Liability, Gain (Loss), Statement of Income [Extensible List]			Selling, general and administrative expenses