v3.19.3.a.u2
Debt (Future Principal Payments for Borrowings) (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
2020 $ 0
2021 1,046
2022 46
2023 46
2024 1,047
Thereafter 2,500
Total $ 4,685