Revenue from Contracts with Customers - Contract Cost Balances (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
---|---|---|---|---|---|
Sep. 28, 2019 |
Sep. 29, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
Dec. 31, 2018 |
|
Revenue from Contract with Customer [Abstract] | |||||
Current contract cost assets | $ 28 | $ 28 | $ 30 | ||
Non-current contract cost assets | 102 | 102 | $ 98 | ||
Contract cost, amortization | $ 10 | $ 11 | $ 32 | $ 34 |