Goodwill (Tables)

6 Months Ended

Jun. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill by Operating Segment

The changes in the carrying value of goodwill by reportable segment for the six months ended June 30, 2022 are as follows:

(in millions)	Retail			National Programs			Wholesale Brokerage		Services		Total
Balance as of December 31, 2021	$	2,987.2		$	1,089.9		$	488.4	$	171.3	$	4,736.8
Goodwill of acquired businesses		18.9			402.3			0.2		—		421.4
Goodwill disposed of relating to sales of businesses		(2.0	)		—			—		—		(2.0	)
Foreign currency translation adjustments during the year		(6.2	)		(1.0	)		—		—		(7.2	)
Balance as of June 30, 2022	$	2,997.9		$	1,491.2		$	488.6	$	171.3	$	5,149.0