Revenues - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Dec. 31, 2019
Revenue From Contract With Customer, Assets And Liabilities [Line Items]
Deferred revenue balances	$ 478		$ 459
Revenue recognized that was included in contract liability	73	$ 70
Prepaid expenses and other current assets
Revenue From Contract With Customer, Assets And Liabilities [Line Items]
Contract assets recorded in prepaids and other current assets	$ 8		$ 8