XML 95 R80.htm IDEA: XBRL DOCUMENT v3.19.1
Leases (Future Rental Revenues under Operating Leases) (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Leases [Abstract]  
2019 $ 66
2020 66
2021 64
2022 20
2023 20
2024 and thereafter 196
Total minimum future rental revenues under non-cancelable operating leases $ 432