Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt - Holding Company Debt (Details) - USD ($) $ in Millions	1 Months Ended
	Feb. 28, 2022	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	$ (1)
Holding Company
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	(1)
Holding Company \| 6.750% senior unsecured notes due 2024
Debt Instrument [Line Items]
Debt face amount	$ 500
Interest rate on debt instrument	6.75%	6.75%	6.75%
Holding Company \| 4.750% senior unsecured note due 2024
Debt Instrument [Line Items]
Interest rate on debt instrument		4.75%	4.75%
Holding Company \| 6.375% senior unsecured notes due 2025
Debt Instrument [Line Items]
Interest rate on debt instrument		6.375%	6.375%
Holding Company \| 6.250% senior unsecured notes due 2026
Debt Instrument [Line Items]
Interest rate on debt instrument		6.25%	6.25%
Holding Company \| 5.250% senior unsecured note due 2027
Debt Instrument [Line Items]
Interest rate on debt instrument		5.25%	5.25%