Income Taxes Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
UNITED STATES
Valuation Allowance [Line Items]
Tax Valuation Allowance Expense, Federal	$ 384.3
CANADA
Valuation Allowance [Line Items]
Tax Valuation Allowance Expense, Federal	$ 66.1