Earnings per share (Tables)

6 Months Ended

Jun. 30, 2025

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share, Basic And Diluted

	Three Months Ended				Six Months Ended
	June 30				June 30
(in millions of U.S. dollars, except share and per share data)	2025		2024		2025		2024
Numerator:
Net income	$	2,999	$	2,216	$	4,342	$	4,510
Net income (loss) attributable to noncontrolling interests	31		(14)		43		137
Net income attributable to Chubb	$	2,968	$	2,230	$	4,299	$	4,373
Denominator:
Denominator for basic earnings per share attributable to Chubb:
Weighted-average shares outstanding	399,886,323		404,615,765		400,281,946		405,139,228
Denominator for diluted earnings per share attributable to Chubb:
Share-based compensation plans	3,960,707		3,990,902		4,012,933		4,138,555
Weighted-average shares outstanding and assumed conversions	403,847,030		408,606,667		404,294,879		409,277,783
Basic earnings per share attributable to Chubb	$	7.42	$	5.51	$	10.74	$	10.79
Diluted earnings per share attributable to Chubb	$	7.35	$	5.46	$	10.63	$	10.68
Potential anti-dilutive share conversions	1,663,091		1,348,531		1,684,365		939,842