Share-based Compensation and Other Employee Benefits - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 55
Options granted (in shares)	0		0
Proceeds from option exercises	$ 3	$ 7	$ 4
Granted (in usd per share)	$ 27.60	$ 11.51	$ 27.83
Share-based compensation expense	$ 46	$ 40	$ 46
401 (K) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Matching contribution expense	$ 11	11	9
2019 Omnibus Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (in years)	10 years
Vesting period	3 years
Shares authorized (in shares)	16,000,000
Annual Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 11	16	7
Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period of recognition	1 year 8 months 12 days
Restricted Stock Awards and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercises in the period intrinsic value	$ 8	13	15
Granted (in usd per share)	$ 27.60
Fair value of RSA/RSU shares vested	$ 25	17	$ 25
Performance stock units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 11	$ 3
Performance stock units (PSUs) \| Certain Individuals
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance cycles (in years)	3 years	1 year
Vesting period	3 years	3 years
Employee Stock \| Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Approved for future issuance (in shares)			2,000,000
Maximum percent of base pay			15.00%
Purchase price of common stock			85.00%

Share-based Compensation Arrangement by Share-based Payment Award, Performance Cycles

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

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Aggregate number of common shares reserved for future issuance.

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Amount of cost for defined contribution plan.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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Number of shares authorized for issuance under share-based payment arrangement.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Purchase price of common stock expressed as a percentage of its fair value.

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