Schedule I - Condensed Financial Information of Parent (Senior Notes and Junior Subordinated Notes) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	$ 4,464	$ 3,894
Recourse Debt Current	(200)	0
Recourse Debt Non Current	4,264	3,894
Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	4,464
Recourse Debt Current	(200)
Debt Maturity Year One [Member]
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	200
Debt Maturity Year One [Member] \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	200
Debt Maturity Year Two [Member]
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	900
Debt Maturity Year Two [Member] \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	900
Debt Maturity Year Three [Member]
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	800
Debt Maturity Year Three [Member] \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	800
Debt Maturity Year Four [Member]
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	0
Debt Maturity Year Four [Member] \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	0
Debt Maturity Year Five [Member]
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	900
Debt Maturity Year Five [Member] \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	900
Thereafter
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	1,700
Thereafter \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	1,700
Senior Variable Rate Term Loan due 2024 \| Parent Company \| Revolving Credit Facility [Member] \| Recourse Debt
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	$ 200	200
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Parent Company \| Senior Variable Rate Term Loan due 2024 \| Recourse Debt
Condensed Financial Statements, Captions [Line Items]
Basis spread on variable rate	1.125%
Recourse Debt Excluding Junior Subordinated Debt \| Parent Company
Condensed Financial Statements, Captions [Line Items]
Recourse Debt Total	$ 4,464	3,894
Recourse Debt Non Current	$ 4,264	$ 3,894

The current portion of the entity's recourse debt. Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates' non-recourse debt.

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The non-current portion of the entity's recourse debt. Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates' non-recourse debt.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates non-recourse debt.

+ References

No definition available.

+ Details

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- References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 810
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481231/810-10-45-11

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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