Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	[1]	Jun. 30, 2023	Jun. 30, 2022
Revenues
Net earned premiums	$ 2,347	$ 2,155		$ 4,595	$ 4,214	[1]
Net investment income	575	432		1,100	880	[1]
Net investment losses	(32)	(59)		(67)	(70)	[1]
Non-insurance warranty revenue	407	392		814	774	[1]
Other revenues	7	6		14	13	[1]
Total revenues	3,304	2,926		6,456	5,811
Claims, Benefits and Expenses
Insurance claims and policyholders’ benefits (re-measurement gain (loss) of $(33), $1, $(34), and $6)	1,779	1,601		3,432	3,079	[1]
Amortization of deferred acquisition costs	403	374		782	718	[1]
Non-insurance warranty expense	384	367		768	721	[1]
Other operating expenses	346	329		683	655	[1]
Interest	31	28		59	56	[1]
Total claims, benefits and expenses	2,943	2,699		5,724	5,229
Income before income tax	361	227		732	582	[1]
Income tax expense	(78)	(37)		(152)	(97)	[1]
Net income	$ 283	$ 190	[2]	$ 580	$ 485	[3]
Basic earnings per share
Basic earnings per share (in usd per share)	$ 1.04	$ 0.70		$ 2.14	$ 1.79
Diluted earnings per share
Diluted earnings per share (in usd per share)	$ 1.04	$ 0.69		$ 2.13	$ 1.78
Weighted Average Outstanding Common Stock and Common Stock Equivalents
Weighted average shares outstanding (in shares)	271.2	271.7		271.2	271.8
Diluted (in shares)	272.0	272.6		272.1	272.7

[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.