Other Financial Data Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Other Income and Expenses [Abstract]
Other expense/(income)	$ 81	$ 380
Loss/(gain) on sale of business	(2)	$ 246
Defined Benefit Plan, year over year change in amortization of prior service credits	$ (46)