Intangible Assets Summary of Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Summary of Other Intangible Assets [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

The following table provides a summary of other intangible assets, which are included in other assets on our Consolidated Balance Sheets.

	December 31,
	2017							2016
	Gross Amount		Accumulated Amortization			Net Amount		Gross Amount		Accumulated Amortization			Net Amount
Customer lists	$	267.3	$	(172.2	)	$	95.1	$	252.4	$	(151.4	)	$	101.0
Trade names	68.8		(33.8		)	35.0		65.5		(28.9		)	36.6
Other	14.4		(3.8		)	10.6		14.3		(3.8		)	10.5
Total	$	350.5	$	(209.8	)	$	140.7	$	332.2	$	(184.1	)	$	148.1