Income Taxes Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
UNITED STATES
Valuation Allowance [Line Items]
Tax Valuation Allowance Expense, Federal	$ 445.9
CANADA
Valuation Allowance [Line Items]
Tax Valuation Allowance Expense, Federal	$ 64.4