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
	Mar. 28, 2020	Mar. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 55	$ 37
Payments	(1)	0
Ending Balance	$ 54	$ 37