Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation - Narrative (Details)

v3.22.0.1
Share-Based Compensation - Narrative (Details) - USD ($)
shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Performance Units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award Vesting Period, Cliff Vesting 3 years    
Share-based compensation that may be settled in cash $ 3    
Performance Units [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of Target Amount Earned Upon Vesting If Threshold Performance is Met 0.00%    
Performance Units [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of Target Amount Earned Upon Vesting If Threshold Performance is Met 300.00%    
Restricted Stock Share Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Units Granted 0    
Fair value of units vested $ 2 $ 3 $ 3
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year    
Vesting Period - Service Years, Option 2 2 years    
Vesting Period - Serivce Years, Option 3 3 years    
Vesting Period - Service Years, Option 4 4 years    
Phantom Unit Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Units Granted 0    
Fair value of units vested $ 1 $ 4 $ 11
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 2 years    
Vesting Period - Service Years, Option 2 3 years    
Vesting Period - Serivce Years, Option 3 4 years    
2020 Incentive Plan [Member] | Common Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 8,000    
2011 Incentive Plan | Common Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 35,000