Consolidated Statements Of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenues
Net premiums written	$ 14,866	$ 13,829	$ 41,708	$ 39,410
Increase in unearned premiums	(507)	(456)	(2,224)	(2,162)
Net premiums earned	14,359	13,373	39,484	37,248
Net investment income	1,648	1,508	4,777	4,367
Net realized gains (losses)	283	198	327	201
Market risk benefits gains (losses)	(142)	(230)	(251)	(238)
Total revenues	16,148	14,849	44,337	41,578
Expenses
Losses and loss expenses	6,951	7,383	20,419	19,541
Policy benefits (includes remeasurement gains of $66, $26, $61 and $4)	1,372	1,099	4,005	3,498
Policy acquisition costs	2,563	2,324	7,291	6,757
Administrative expenses	1,138	1,094	3,343	3,258
Interest expense	197	192	559	552
Other (income) expense	(43)	(325)	(781)	(626)
Amortization of purchased intangibles	75	81	224	241
Integration expenses	1	7	3	21
Total expenses	12,254	11,855	35,063	33,242
Income before income tax	3,894	2,994	9,274	8,336
Income tax expense	787	504	1,825	1,336
Net income	3,107	2,490	7,449	7,000
Net income attributable to noncontrolling interests	306	166	349	303
Net income attributable to Chubb	2,801	2,324	7,100	6,697
Other comprehensive income (loss):
Unrealized appreciation	868	3,459	2,755	2,293
Current discount rate on future policy benefits	305	(672)	53	(672)
Instrument-specific credit risk on market risk benefits	(9)	(8)	(4)	2
Cumulative foreign currency translation adjustment	128	445	1,283	(5)
Other, including postretirement benefit liability adjustment	(6)	(19)	(127)	(17)
Other comprehensive income, before income tax	1,286	3,205	3,960	1,601
Income tax expense related to OCI items	(40)	(150)	(116)	(112)
Other comprehensive income	1,246	3,055	3,844	1,489
Comprehensive income	4,353	5,545	11,293	8,489
Comprehensive income attributable to noncontrolling interests	386	187	441	253
Comprehensive income attributable to Chubb	$ 3,967	$ 5,358	$ 10,852	$ 8,236
Earnings per share
Basic earnings per share attributable to Chubb	$ 7.05	$ 5.75	$ 17.78	$ 16.55
Diluted earnings per share attributable to Chubb	$ 6.99	$ 5.70	$ 17.61	$ 16.38