Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Other than Options (Details)

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Stock-based Compensation - Other than Options (Details) - Restricted Stock and Restricted Stock Units - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Common Stock Class A and C      
Stock Based Compensation      
Fair value of outstanding grants $ 28 $ 5 $ 3
Common Stok Class A and C, Series A cumulative redeemable preferred stock      
Stock Based Compensation      
Unvested shares outstanding 261    
Weighted average grant date fair value awards outstanding unvested (in dollars per share) $ 150.51