Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues
Net earned premiums	$ 10,211	$ 9,480	$ 8,667
Net investment income	2,497	2,264	1,805
Net investment losses	(81)	(99)	(199)
Non-insurance warranty revenue	1,609	1,624	1,574
Other revenues	34	30	32
Total revenues	14,270	13,299	11,879
Claims, Benefits and Expenses
Insurance claims and policyholders’ benefits (re-measurement loss of $125, $88 and $214)	7,738	7,068	6,653
Amortization of deferred acquisition costs	1,798	1,644	1,490
Non-insurance warranty expense	1,547	1,544	1,471
Other operating expenses	1,843	1,398	1,339
Interest	133	127	112
Total claims, benefits and expenses	13,059	11,781	11,065
Income before income tax	1,211	1,518	814
Income tax expense	(252)	(313)	(132)
Net income	$ 959	$ 1,205	$ 682
Basic earnings per share
Basic earnings per share (in usd per share)	$ 3.53	$ 4.44	$ 2.51
Diluted earnings per share
Diluted earnings per share (in usd per share)	$ 3.52	$ 4.43	$ 2.51
Weighted Average Outstanding Common Stock and Common Stock Equivalents
Basic (in shares)	271.5	271.3	271.6
Diluted (in shares)	272.7	272.2	272.5