Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Item Effected [Line Items]

Schedule of Prospective Adoption of New Accounting Pronouncements [Table Text Block]

Consolidated Statements of Income

	Year Ended December 31, 2017
	As Reported		Reclassification			As Adjusted
Selling, general and administrative expenses	$	1,047.2	$	(20.6	)	$	1,026.6
Non-operating expenses	4.2		20.6			24.8

	Year Ended December 31, 2016
	As Reported		Reclassification			As Adjusted
Selling, general and administrative expenses	$	1,008.7	$	(22.4	)	$	986.3
Non-operating expenses	3.6		22.4			26.0