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Long-Term Debt - Future Maturities of Long-Term Debt (Details) - USD ($)
$ in Millions
Jun. 29, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]    
2019 $ 43  
2020 154  
2021 1,527  
2022 0  
2023 0  
Thereafter 0  
Total future debt maturities $ 1,724 $ 1,600