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Goodwill (Tables)
9 Months Ended
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill roll-forward by business segment
The following table presents a roll-forward of Goodwill by segment:

(in millions of U.S. dollars)North America Commercial P&C InsuranceNorth America Personal P&C InsuranceNorth America Agricultural InsuranceOverseas General InsuranceGlobal ReinsuranceLife InsuranceChubb Consolidated
Balance at December 31, 2023$6,946 $2,231 $134 $5,262 $371 $4,742 $19,686 
Acquisition of Healthy Paws256      256 
Measurement-period adjustments     65 65 
Foreign exchange revaluation(2)(1) (43) 29 (17)
Balance at September 30, 2024 (1)
$7,200 $2,230 $134 $5,219 $371 $4,836 $19,990 
(1)Includes $509 million attributable to noncontrolling interests.