Revenue from Contracts with Customers

6 Months Ended

Jun. 30, 2023

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):

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Commercial Risk Solutions	$	1,774	$	1,692	$	3,552	$	3,411
Reinsurance Solutions	607		537		1,684		1,513
Health Solutions	447		414		1,118		1,052
Wealth Solutions	352		343		702		688
Eliminations	(3)		(3)		(8)		(11)
Total revenue	$	3,177	$	2,983	$	7,048	$	6,653

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 June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
United States	$	1,427	$	1,339	$	2,922	$	2,756
Americas other than United States	308		288		609		564
United Kingdom	506		489		1,060		1,017
Ireland	28		25		58		54
Europe, Middle East, & Africa other than United Kingdom and Ireland	512		469		1,614		1,527
Asia Pacific	396		373		785		735
Total revenue	$	3,177	$	2,983	$	7,048	$	6,653

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 June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Balance at beginning of period	$	257	$	254	$	355	$	361
Additions	355		354		717		702
Amortization	(373)		(361)		(835)		(818)
Impairment	—		—		—		—
Foreign currency translation and other	3		(8)		5		(6)
Balance at end of period	$	242	$	239	$	242	$	239

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 June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
Balance at beginning of period	$	183	$	184	$	185	$	179
Additions	13		12		23		27
Amortization	(13)		(12)		(25)		(24)
Impairment	—		—		—		—
Foreign currency translation and other	3		(2)		3		—
Balance at end of period	$	186	$	182	$	186	$	182