XML 67 R54.htm IDEA: XBRL DOCUMENT v3.19.3
Leases - Maturities of Expected Lease Revenues (Details)
$ in Millions
Sep. 30, 2019
USD ($)
Leases [Abstract]  
Remainder of 2019 $ 11
2020 60
2021 48
2022 36
2023 23
Thereafter 12
Total future lease maturities $ 190