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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant	5,350,487		5,350,487
Shares granted			3,096,694	3,131,949
Shares granted, weighted average grant date fair value			$ 11.62	$ 11.20
Expense recognized under 401(K) plan	$ 2	$ 2	$ 5	$ 5
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			3,096,694
Shares granted, weighted average grant date fair value			$ 11.62
Compensation and benefits expense	7	7	$ 21	$ 22
Unrecognized compensation cost relating to unvested restricted stock	66		$ 66
Unrecognized compensation cost relating to unvested restricted stock, recognition period (in years)			3 years 1 month 6 days
Restricted Stock | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted, vesting period			1 year	1 year
Restricted Stock | Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted, vesting period			5 years	5 years
Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted			473,211
Compensation and benefits expense	1	$ 2	$ 1	$ 2
Unrecognized compensation cost relating to unvested restricted stock	$ 5		$ 5
Unrecognized compensation cost relating to unvested restricted stock, recognition period (in years)			1 year 8 months 12 days

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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