Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

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


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Commercial Risk Solutions	$	1,042	$	1,057	$	3,314	$	3,342
Reinsurance Solutions	321		291		1,617		1,499
Retirement Solutions	468		484		1,258		1,323
Health Solutions	282		279		1,042		1,082
Data & Analytic Services	278		271		883		893
Elimination	(6)		(3)		(13)		(11)
Total revenue	$	2,385	$	2,379	$	8,101	$	8,128

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,
	2020		2019		2020		2019
United States	$	1,169	$	1,209	$	3,503	$	3,516
Americas other than United States	200		256		647		723
United Kingdom	332		358		1,276		1,210
Ireland	19		17		63		59
Europe, Middle East, & Africa other than United Kingdom and Ireland	372		266		1,731		1,734
Asia Pacific	293		273		881		886
Total revenue	$	2,385	$	2,379	$	8,101	$	8,128

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 September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Balance at beginning of period	$	193	$	216	$	335	$	329
Additions	291		326		883		1,008
Amortization	(266)		(299)		(995)		(1,095)
Impairment	—		—		—		—
Foreign currency translation and other	2		(4)		(3)		(3)
Balance at end of period	$	220	$	239	$	220	$	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 September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Balance at beginning of period	$	172	$	161	$	171	$	156
Additions	15		14		43		40
Amortization	(12)		(11)		(35)		(33)
Impairment	—		—		—		—
Foreign currency translation and other	1		(1)		(3)		—
Balance at end of period	$	176	$	163	$	176	$	163