Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Expense Recognized

Our stock-based compensation expense consists primarily of time-based and performance based stock options, restricted stock units and restricted stock awards that have been granted to management, other personnel and key service providers.  

Stock-Based Compensation Expense
	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2014		2013		2014		2013
Amounts included in:
Corporate expense	$	11.7	$	2.6	$	18.5	$	3.3
Property, general, administrative, and other	11.8		3.5		31.4		6.4
Total stock-based compensation expense	$	23.5	$	6.1	$	49.9	$	9.7

Stock-Based Compenation Attributable to Variable interest Entity [Table Text Block]

Stock-Based Compensation Expense (Portion of Amounts Above Attributable to CIE)
	Three Months Ended June 30,				Six Months Ended June 30,
(In millions)	2014		2013		2014		2013
Liability awards	$	6.1	$	1.8	$	22.5	$	2.3
Equity awards	2.0		0.8		3.9		1.6
Total	$	8.1	$	2.6	$	26.4	$	3.9

Summary of Share-Based Option Activity

Stock Option Activity
	Shares		Weighted Average Exercise Price
Outstanding as of December 31, 2013	8,463,811		$	12.09
Granted	1,500,000		21.18
Exercised	(98,026	)	11.00
Forfeited	(121,862	)	8.78
Expired	(6,946	)	12.51
Outstanding as of June 30, 2014	9,736,977		$	13.53
Vested and expected to vest as of June 30, 2014	9,298,209		$	13.27
Exercisable as of June 30, 2014	2,956,822		$	14.04

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

Restricted Stock Unit Activity
	Units		Fair Value
Outstanding as of December 31, 2013	1,503,534		$	13.74
Granted	1,136,515		21.18
Canceled	(42,639	)	14.21
Vested	(371,151	)	13.71
Outstanding as of June 30, 2014	2,226,259		$	17.53