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Affiliate Equity (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Affiliate Equity
Affiliate equity compensation expense attributable to noncontrolling interest	$ 15.9	$ 16.3	$ 6.8
Compensation expenses related to Affiliate equity	68.2	85.3
Compensation expenses related to Affiliate equity, attributable to controlling interest	$ 32.1	$ 33.0
Weighted average period of recognition	4 years

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- Definition

Affiliate Equity Compensation Expense, Attributable to Noncontrolling Interest

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- Definition

Affiliate Equity Compensation Expense, Weighted Average Period of Recognition

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- Definition

Represents the compensation expenses related to Affiliate equity.

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- Definition

Represents the compensation expenses related to affiliate equity, which were attributable to the controlling interest.

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