Fair Value Measurements Interest Rate Swaps (Details) - USD ($) $ in Millions	Jan. 02, 2021	Dec. 28, 2019
Derivatives, Fair Value [Line Items]
Interest rate swaps	$ 5	$ 1
Derivatives designated as hedging instruments
Derivatives, Fair Value [Line Items]
Interest rate swaps, at fair value, net	5	1
Derivatives designated as hedging instruments | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Interest rate swaps	5	0
Derivatives designated as hedging instruments | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Interest rate swaps	$ 0	$ 1