Revenue (Tables)

6 Months Ended

Jun. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following schedule disaggregates components of the Company's revenue:

	Three Months Ended June 30,		Six Months Ended June 30,
(In millions)	2019		2019
Marsh:
EMEA	$	652	$	1,285
Asia Pacific	291		456
Latin America	116		194
Total International	1,059		1,935
U.S./Canada	1,097		1,958
Total Marsh	2,156		3,893
Guy Carpenter	392		1,055
Subtotal	2,548		4,948
Fiduciary interest income	26		49
Total Risk and Insurance Services	$	2,574	$	4,997
Mercer:
Wealth	$	613	$	1,156
Health	458		900
Career	189		359
Total Mercer	1,260		2,415
Oliver Wyman	540		1,058
Total Consulting	$	1,800	$	3,473

Contract with Customer, Asset and Liability

The following schedule provides contract assets and contract liabilities information from contracts with customers.

(In millions)	June 30, 2019		January 1, 2019
Contract Assets	$	275	$	112
Contract Liabilities	$	641	$	545