Derivative Instruments - Notional Values and Net Fair Value of Outstanding Contracts (Details) € in Millions, ¥ in Millions, ¥ in Millions, £ in Millions, R in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	Sep. 28, 2019 USD ($)	Sep. 28, 2019 CAD ($)	Sep. 28, 2019 AUD ($)	Sep. 28, 2019 JPY (¥)	Sep. 28, 2019 GBP (£)	Sep. 28, 2019 MXN ($)	Sep. 28, 2019 CNY (¥)	Sep. 28, 2019 EUR (€)	Sep. 28, 2019 SGD ($)	Sep. 28, 2019 ZAR (R)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 CAD ($)	Dec. 31, 2018 AUD ($)	Dec. 31, 2018 JPY (¥)	Dec. 31, 2018 GBP (£)	Dec. 31, 2018 MXN ($)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2018 EUR (€)	Dec. 31, 2018 SGD ($)	Dec. 31, 2018 ZAR (R)
Derivative [Line Items]
Net fair value of (liabilities) assets of outstanding contracts | $	$ (1)										$ 1
Foreign Exchange Forward | U.S. dollar
Derivative [Line Items]
Notional balance of outstanding contracts		$ 2	$ 58	¥ 202	£ 15	$ 121	¥ 83	€ 33	$ 6	R 42		$ 6	$ 47	¥ 396	£ 1	$ 225	¥ 71	€ 45	$ 7	R 42
Foreign Exchange Forward | Euro
Derivative [Line Items]
Notional balance of outstanding contracts | £					£ 0										£ 6