Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table summarizes revenue from contracts with customers by principal service line (in millions):

	Three Months Ended March 31,
	2023		2022
Commercial Risk Solutions	$	1,778	$	1,719
Reinsurance Solutions	1,077		976
Health Solutions	671		638
Wealth Solutions	350		345
Eliminations	(5)		(8)
Total revenue	$	3,871	$	3,670

Consolidated revenue from contracts with customers by geographic area, which is attributed on the basis of where the services are performed, is as follows (in millions):

	Three Months Ended March 31,
	2023		2022
United States	$	1,495	$	1,417
Americas other than United States	301		276
United Kingdom	554		528
Ireland	30		29
Europe, Middle East, & Africa other than United Kingdom and Ireland	1,102		1,058
Asia Pacific	389		362
Total revenue	$	3,871	$	3,670

Schedule of Capitalized Contract Cost

An analysis of the changes in the net carrying amount of costs to fulfill contracts with customers are as follows (in millions):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	355	$	361
Additions	362		348
Amortization	(462)		(457)
Impairment	—		—
Foreign currency translation and other	2		2
Balance at end of period	$	257	$	254

An analysis of the changes in the net carrying amount of costs to obtain contracts with customers are as follows (in millions):

	Three Months Ended March 31,
	2023		2022
Balance at beginning of period	$	185	$	179
Additions	10		15
Amortization	(12)		(12)
Impairment	—		—
Foreign currency translation and other	—		2
Balance at end of period	$	183	$	184