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Debt (Future principal payments on long-term debt) (Details)
$ in Millions
Apr. 03, 2020
USD ($)
Debt Disclosure [Abstract]  
Repayments of long-term debt, remainder of 2019 $ 0
Repayments of long-term debt, 2020 19
Repayments of long-term debt, 2021 502
Repayments of long-term debt, 2022 749
Repayments of long-term debt, 2023 525
Thereafter 2,336
Total future principal payments on long-term debt $ 4,131