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Organization (Tables)

12 Months Ended

Dec. 31, 2017

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)	2017			2016		2015
Real Estate Services:
Leasing	$	2,023.3		1,759.2		1,669.2
Capital Markets & Hotels	1,138.7			972.1		956.9
Property & Facility Management	2,381.9			1,902.5		1,550.6
Project & Development Services	1,348.7			1,195.2		882.1
Advisory, Consulting and Other	684.5			567.0		509.9
LaSalle	355.3			407.8		397.0
Total revenue	$	7,932.4		6,803.8		5,965.7

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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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