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PROPERTY AND EQUIPMENT. (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property and equipment summary

Property and equipment at December 31 consists of:

(in millions)	2016				2017
Computer and communications software and equipment	$	704.0			$	824.4
Buildings and improvements	422.0				442.5
Leasehold improvements	108.2				121.0
Furniture and other equipment	158.3				168.9
Land	40.3				37.4
Leased land	2.7				2.7
	1,435.5				1,596.9
Less accumulated depreciation and amortization	820.4				944.9
Total	$	615.1			$	652.0

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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