Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	[1]	Sep. 30, 2023	Sep. 30, 2022	[1]
Revenues
Net earned premiums	$ 2,406	$ 2,221		$ 7,001	$ 6,435
Net investment income	553	422		1,653	1,302
Net investment losses	(38)	(96)		(105)	(166)
Non-insurance warranty revenue	407	399		1,221	1,173
Other revenues	8	11		22	24
Total revenues	3,336	2,957		9,792	8,768
Claims, Benefits and Expenses
Insurance claims and policyholders’ benefits (re-measurement gain (loss) of $(41), $(211), $(75), and $(205))	1,826	1,880		5,258	4,959
Amortization of deferred acquisition costs	426	383		1,208	1,101
Non-insurance warranty expense	386	371		1,154	1,092
Other operating expenses	338	346		1,021	1,001
Interest	34	28		93	84
Total claims, benefits and expenses	3,010	3,008		8,734	8,237
Income (loss) before income tax	326	(51)		1,058	531
Income tax (expense) benefit	(68)	9		(220)	(88)
Net income (loss)	$ 258	$ (42)	[2]	$ 838	$ 443	[3]
Basic earnings (loss) per share
Basic earnings (loss) per share (in usd per share)	$ 0.95	$ (0.15)		$ 3.09	$ 1.63
Diluted earnings (loss) per share
Diluted earnings (loss) per share (in usd per share)	$ 0.95	$ (0.15)		$ 3.08	$ 1.63
Weighted Average Outstanding Common Stock and Common Stock Equivalents
Weighted average shares outstanding (in shares)	271.2	271.4		271.2	271.7
Diluted (in shares)	272.3	272.3		272.2	272.6

[1] As of January 1, 2023, the Company adopted ASU 2018-12, Financial Services-Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts (ASU 2018-12) using the modified retrospective method applied as of the transition date of January 1, 2021. Prior period amounts in the financial statements have been adjusted to reflect application of the new guidance. See Note A to the Condensed Consolidated Financial Statements for additional information.

[2] As of January 1, 2023, the Company adopted ASU 2018-12 using the modified retrospective method applied as of the transition date of January 1, 2021. Prior period amounts in the financial statements have been adjusted to reflect application of the new guidance. See Note A to the Condensed Consolidated Financial Statements for additional information.

[3] As of January 1, 2023, the Company adopted ASU 2018-12 using the modified retrospective method applied as of the transition date of January 1, 2021. Prior period amounts in the financial statements have been adjusted to reflect application of the new guidance. See Note A to the Condensed Consolidated Financial Statements for additional information.