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Organization (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Revenue for Major Product Categories

The following table shows the revenue for the major product categories into which we group these services.

	Year Ended December 31,
($ in millions)	2018			2017		2016
Real Estate Services:
Leasing	$	2,372.1		2,051.9		1,798.4
Capital Markets	1,145.4			1,149.4		980.1
Property & Facility Management	8,782.8			7,821.3		7,136.5
Project & Development Services	2,669.0			2,344.5		2,070.3
Advisory, Consulting and Other	815.2			730.3		597.8
LaSalle	533.9			355.8		408.1
Total revenue	$	16,318.4		14,453.2		12,991.2

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Tabular disclosure of product information that are included in the discussion of the nature of an entity's operations.

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