Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2020

Stockholders' Equity Note [Abstract]

Dividends Declared

The following table presents dividend distributions per Common Share in Swiss francs (CHF) and U.S. dollars (USD):

	Three Months Ended						Nine Months Ended
	September 30						September 30
	2020			2019			2020			2019
	CHF	USD		CHF	USD		CHF	USD		CHF	USD
Total dividend distributions per common share	0.71	$	0.78	0.73	$	0.75	2.18	$	2.31	2.20	$	2.23

Share Repurchase Program [Table Text Block]

The following table presents repurchases of Chubb's Common Shares conducted in a series of open market transactions under the Board authorizations:

	Three Months Ended				Nine Months Ended				October 1, 2020 through October 29, 2020
			September 30				September 30
(in millions of U.S. dollars, except share data)	2020		2019		2020		2019
Number of shares repurchased	—		3,079,618		2,266,150		8,417,838		52,500
Cost of shares repurchased	$	—	$	478	$	326	$	1,221	$	7
Repurchase authorization remaining at end of period	$	1,124	$	258	$	1,124	$	258	$	1,117