Redeemable Noncontrolling Interests (Tables)

12 Months Ended

Dec. 31, 2017

Redeemable Noncontrolling Interests [Abstract]

Redeemable Noncontrolling Interest [Table Text Block]

Changes in redeemable noncontrolling interests were as follows:

	Redeemable Noncontrolling Interests
Balance at December 31, 2015	$	—
Purchase of noncontrolling interests	44.1
Balance at December 31, 2016	44.1
Other comprehensive income (loss)	32.8
Redemption value adjustment	32.0
Redemption of shares	(3.5		)
Reclassification of noncontrolling interest	386.7
Balance at December 31, 2017	$	492.1