Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2015

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

The following schedule summarizes the Partnership's non-cash financing activities for the period presented.

	Three Months Ended March 31,
	2015
	(Millions)
Non-cash financing activities:
Non-cash issuance of common units (1)	$	180.0
Non-cash issuance of Class C Common Units (1)	$	180.0