Income and Partnership Taxes Unrecognized Tax Position (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 29, 2013
Income Tax Expense (Benefit) [Abstract]
Unrecognized tax benefit	$ 1.1

- Definition

This element represents the total of interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties in the period in which the entity claims or expects to claim a tax position, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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