Annual report pursuant to Section 13 and 15(d)

Equity - Equity-based Compensation Expense and Fair Value of Shares Vested (Details)

v3.20.4
Equity - Equity-based Compensation Expense and Fair Value of Shares Vested (Details) - 2013 Plan - LTIP Units - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Equity-based compensation expense $ 17 $ 14 $ 10
Fair value of awards vested on vesting date $ 39 $ 19 $ 7