Shareholders' Equity (Tables)

6 Months Ended

Jun. 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						Six Months Ended
	June 30						June 30
	2020			2019			2020			2019
	CHF	USD		CHF	USD		CHF	USD		CHF	USD
Total dividend distributions per common share	0.75	$	0.78	0.75	$	0.75	1.47	$	1.53	1.47	$	1.48

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				Six Months Ended
			June 30				June 30
(in millions of U.S. dollars, except share data)	2020		2019		2020		2019
Number of shares repurchased	—		2,584,466		2,266,150		5,338,220
Cost of shares repurchased	$	—	$	376	$	326	$	743
Repurchase authorization remaining at end of period	$	1,124	$	736	$	1,124	$	736