CONDENSED CONSOLIDATED STATEMENTS OF EQUITY, REDEEMABLE COMMON STOCK AND REDEEMABLE NONCONTROLLING INTERESTS (USD $) In Millions	Total	Common Class A [Member]	Common Class B [Member]	Parent [Member]	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interest	Total Equity	Redeemable Noncontrolling Interests	Former Chief Executive Officer [Member] Common Class A [Member]	Former Chief Executive Officer [Member] Parent [Member]	Former Chief Executive Officer [Member] Additional Paid-in Capital	Former Chief Executive Officer [Member] Treasury Stock	Former Chief Executive Officer [Member] Total Equity
BALANCE at Jun. 30, 2013		$ 0.7	$ 3.1	$ 1,494.0	$ 1,943.9	$ (329.0)	$ (118.6)	$ (6.1)	$ 15.7	$ 1,509.7	$ 105.8
BALANCE (in Shares) at Jun. 30, 2013		73.6	310.6					0.4
Conversion of Class B to Class A Common Stock		0.1	(0.1)	0						0
Conversion of Class B to Class A Common Stock (in Shares)		12.0	(12.0)
Purchase of Class A Common Stock				0	0.3			(0.3)		0
Purchase of Class A Common Stock (in shares)								0
Exercise of employee stock options		0		3.8	3.8					3.8
Exercise of employee stock options (in Shares)		0.7
Share-based compensation expense				22.2	22.2					22.2
Dividends				(77.4)	(77.4)					(77.4)
Net income	195.3			176.0		176.0			11.1	187.1	8.2
Other comprehensive income (loss)	58.1			58.4			58.4		0	58.4	(0.3)
Distribution to noncontrolling interests, net									(8.3)	(8.3)	(4.0)
Adjustment of redeemable noncontrolling interests to redemption value				5.6	5.6					5.6	(5.6)
BALANCE at Dec. 31, 2013		0.8	3.0	1,682.6	1,898.4	(153.0)	(60.2)	(6.4)	18.5	1,701.1	104.1
BALANCE (in Shares) at Dec. 31, 2013		86.3	298.6					0.4
BALANCE at Jun. 30, 2014	854.4	1.2	2.6	843.8	1,926.9	(426.4)	(85.1)	(575.4)	10.6	854.4	106.2
BALANCE (in Shares) at Jun. 30, 2014		125.1	263.7					34.9
Purchase of Class A Common Stock				(149.2)				149.2		(149.2)			(42.0)		(42.0)	(42.0)
Purchase of Class A Common Stock (in shares)								7.6							(2.4)
Exercise of employee stock options		0.1		22.4	22.3					22.4			12.5	12.5		12.5
Exercise of employee stock options (in Shares)	4.1	2.8
Share-based compensation expense				8.1	8.1					8.1
Dividends				(71.8)	(71.8)					(71.8)
Net income	151.6			136.0		136.0			11.1	147.1	4.5
Other comprehensive income (loss)	(119.6)			(118.7)			(118.7)		(0.6)	(119.3)	(0.3)
Distribution to noncontrolling interests, net									1.8	1.8	(3.2)
Dividend payable to redeemable noncontrolling interest holder											(5.9)
Redeemable noncontrolling interest purchase adjustment											(16.2)
Adjustment of redeemable noncontrolling interests to redemption value				0.2	0.2					0.2	(0.2)
Reclassification of common stock to liability				(29.5)	(29.5)					(29.5)
Reclassification of CS from liability to APIC				29.5	29.5					29.5
BALANCE at Dec. 31, 2014	664.2	1.3	2.6	641.3	1,898.2	(290.4)	(203.8)	(766.6)	22.9	664.2	84.9
BALANCE (in Shares) at Dec. 31, 2014		129.3	263.7					44.9
BALANCE at Sep. 30, 2014
Purchase of Class A Common Stock		(149.2)
Net income	134.9
Other comprehensive income (loss)	(46.1)
BALANCE at Dec. 31, 2014	664.2	1.3	2.6
BALANCE (in Shares) at Dec. 31, 2014		129.3	263.7
Purchase of Class A Common Stock		$ (103.4)
BALANCE at Feb. 04, 2015