Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	[1]	Dec. 31, 2021	[1]
Revenues
Net earned premiums	$ 9,480	$ 8,667		$ 8,175
Net investment income	2,264	1,805		2,159
Net investment (losses) gains	(99)	(199)		120
Non-insurance warranty revenue	1,624	1,574		1,430
Other revenues	30	32		24
Total revenues	13,299	11,879		11,908
Claims, Benefits and Expenses
Insurance claims and policyholders’ benefits (re-measurement gain (loss) of $(88), $(214), and $(8))	7,068	6,653		6,371
Amortization of deferred acquisition costs	1,644	1,490		1,443
Non-insurance warranty expense	1,544	1,471		1,328
Other operating expenses	1,398	1,339		1,191
Interest	127	112		113
Total claims, benefits and expenses	11,781	11,065		10,446
Income before income tax	1,518	814		1,462
Income tax expense	(313)	(132)		(278)
Net income	$ 1,205	$ 682		$ 1,184
Basic earnings per share
Basic earnings per share (in usd per share)	$ 4.44	$ 2.51		$ 4.36
Diluted earnings per share
Diluted earnings per share (in usd per share)	$ 4.43	$ 2.51		$ 4.34
Weighted Average Outstanding Common Stock and Common Stock Equivalents
Basic (in shares)	271.3	271.6		271.8
Diluted (in shares)	272.2	272.5		272.8

[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 Consolidated Financial Statements for additional information.