Revenue from Contracts with Customers

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

Revenue from Contracts with Customers

Disaggregation of Revenue

The following table summarizes revenue from contracts with customers by principal service line (in millions). Prior year amounts from the Condensed Consolidated Financial Statements have been reclassified to conform to the current year’s presentation. Refer to Note 1 “Basis of Presentation” for further information regarding the changes to the Company’s principal service lines.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Commercial Risk Solutions	$	1,505	$	1,320	$	4,788	$	4,197
Reinsurance Solutions	353		321		1,775		1,617
Health Solutions	497		423		1,503		1,316
Wealth Solutions	351		327		1,062		984
Eliminations	(4)		(6)		(15)		(13)
Total revenue	$	2,702	$	2,385	$	9,113	$	8,101

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 September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
United States	$	1,329	$	1,169	$	3,900	$	3,503
Americas other than United States	230		200		748		647
United Kingdom	340		332		1,368		1,276
Ireland	22		19		94		63
Europe, Middle East, & Africa other than United Kingdom and Ireland	438		372		2,028		1,731
Asia Pacific	343		293		975		881
Total revenue	$	2,702	$	2,385	$	9,113	$	8,101

Contract Costs

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 September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Balance at beginning of period	$	222	$	193	$	339	$	335
Additions	340		291		1,022		883
Amortization	(310)		(266)		(1,110)		(995)
Impairment	—		—		—		—
Foreign currency translation and other	(3)		2		(2)		(3)
Balance at end of period	$	249	$	220	$	249	$	220

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 September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Balance at beginning of period	$	175	$	172	$	184	$	171
Additions	12		15		40		43
Amortization	(11)		(12)		(36)		(35)
Impairment	—		—		—		—
Foreign currency translation and other	(2)		1		(14)		(3)
Balance at end of period	$	174	$	176	$	174	$	176