Income Taxes Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
UNITED STATES
Valuation Allowance [Line Items]
Tax Valuation Allowance Expense, Federal	$ 370.4
CANADA
Valuation Allowance [Line Items]
Tax Valuation Allowance Expense, Federal	$ 62.8