Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

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

	Three Months Ended March 31,
(In millions)	2020
Marsh:
EMEA	$	754
Asia Pacific	238
Latin America	91
Total International	1,083
U.S./Canada	978
Total Marsh	2,061
Guy Carpenter	827
Subtotal	2,888
Fiduciary interest income	23
Total Risk and Insurance Services	$	2,911
Mercer:
Wealth	$	592
Health	486
Career	173
Total Mercer	1,251
Oliver Wyman	511
Total Consulting	$	1,762

Contract with Customer, Asset and Liability

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

(In millions)	March 31, 2020		December 31, 2019
Contract Assets	$	270	$	207
Contract Liabilities	$	659	$	593