Consolidated Statements Of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues
Net premiums written	$ 13,360	$ 11,951	$ 25,581	$ 22,661
Increase in unearned premiums	(1,068)	(952)	(1,706)	(1,520)
Net premiums earned	12,292	10,999	23,875	21,141
Net investment income	1,468	1,145	2,859	2,252
Net realized gains (losses)	104	(304)	3	(381)
Market risk benefits gains (losses)	(29)	(7)	(8)	(122)
Total revenues	13,835	11,833	26,729	22,890
Expenses
Losses and loss expenses	6,431	5,683	12,158	10,831
Policy benefits (includes remeasurement losses of $3, $5, $22 and $4)	1,219	830	2,399	1,627
Policy acquisition costs	2,226	2,016	4,433	3,964
Administrative expenses	1,094	969	2,164	1,899
Interest expense	182	165	360	325
Other (income) expense	(110)	(100)	(301)	(396)
Amortization of purchased intangibles	80	70	160	142
Cigna integration expenses	7	15	14	37
Total expenses	11,129	9,648	21,387	18,429
Income before income tax	2,706	2,185	5,342	4,461
Income tax expense	490	392	832	776
Net Income	2,216	1,793	4,510	3,685
Net income (loss) attributable to noncontrolling interests	(14)	0	137	0
Net income attributable to Chubb	2,230	1,793	4,373	3,685
Other comprehensive income (loss):
Change in unrealized appreciation (depreciation)	(489)	(1,194)	(1,166)	592
Current discount rate on future policy benefits	53	(35)	0	(186)
Instrument-specific credit risk on market risk benefits	5	11	10	8
Cumulative foreign currency translation adjustment	(530)	215	(450)	38
Other, including postretirement benefit liability adjustment	(29)	48	2	15
Other comprehensive income (loss), before income tax	(990)	(955)	(1,604)	467
Income tax (expense) benefit related to OCI items	29	28	38	(104)
Other comprehensive income (loss)	(961)	(927)	(1,566)	363
Comprehensive income	1,255	866	2,944	4,048
Comprehensive income (loss) attributable to noncontrolling interests	(57)	0	66	0
Comprehensive income attributable to Chubb	$ 1,312	$ 866	$ 2,878	$ 4,048
Earnings per share
Basic earnings per share attributable to Chubb	$ 5.51	$ 4.35	$ 10.79	$ 8.92
Diluted earnings per share attributable to Chubb	$ 5.46	$ 4.32	$ 10.68	$ 8.84