Goodwill and Other Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The changes in carrying amounts of goodwill within the Company's segments are summarized as follows:

	Services			Software			Systems			Total
Goodwill	$	890.0		$	224.9		$	174.1		$	1,289.0
Accumulated impairment losses	(290.7		)	—			—			(290.7		)
Balance at January 1, 2017	$	599.3		$	224.9		$	174.1		$	998.3
Goodwill acquired	5.6			—			—			5.6
Goodwill adjustment	(1.1		)	(1.0		)	(0.8		)	(2.9		)
Currency translation adjustment	62.7			30.1			23.3			116.1
Goodwill	$	957.2		$	254.0		$	196.6		$	1,407.8
Accumulated impairment losses	(290.7		)	—			—			(290.7		)
Balance at December 31, 2017	$	666.5		$	254.0		$	196.6		$	1,117.1
Currency translation adjustment	7.1			4.3			3.3			14.7
Goodwill	$	964.3		$	258.3		$	199.9		$	1,422.5
Accumulated impairment losses	(290.7		)	—			—			(290.7		)
Balance at March 31, 2018	$	673.6		$	258.3		$	199.9		$	1,131.8

Schedule Of Intangible Assets [Table Text Block]

The following summarizes information on intangible assets by major category:

		March 31, 2018							December 31, 2017
	Weighted-average remaining useful lives	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships, net	7.4 years	$	766.4	$	(131.8	)	$	634.6	$	741.5	$	(108.2	)	$	633.3
Internally-developed software	2.3 years	201.5		(107.7		)	93.8		192.9		(99.8		)	93.1
Development costs non-software	1.3 years	56.3		(39.1		)	17.2		55.3		(35.1		)	20.2
Other intangibles	1.4 years	78.6		(55.6		)	23.0		84.5		(57.3		)	27.2
Other intangible assets, net		336.4		(202.4		)	134.0		332.7		(192.2		)	140.5
Total		$	1,102.8	$	(334.2	)	$	768.6	$	1,074.2	$	(300.4	)	$	773.8