v3.19.3.a.u2
Variable Interest Entities ("VIEs") - Summary of VIEs (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]    
Investment $ 136 $ 78
Additional cash contribution 0 58
Limited guarantee 50 50
Maximum exposure to loss $ 186 $ 186