CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash provided by operating activities:
Net income	$ 157.3	$ 268.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (Note 6)	257.9	217.2
Derivative fair value net losses (Note 12)	39.5	24.7
Inventory market price adjustments (Note 5)	5.3	$ 3.3
Goodwill impairment (Note 7)	246.7
Environmental costs, net of recoveries (Note 11)	(1.0)	$ 38.0
Distributions from investments in joint ventures (Note 10)	11.6	1.0
Equity earnings from investments in joint ventures (Note 10)	(11.6)	(1.0)
Deferred income taxes (Note 13)	(3.7)	1.3
State income taxes	1.7	1.8
Allowance for equity used during construction (Note 16)	(40.3)	$ (33.3)
Asset impairment (Note 6)	12.3
Other	4.1	$ 0.5
Changes in operating assets and liabilities, net of acquisitions:
Receivables, trade and other	45.7	9.1
Due from General Partner and affiliates	(62.7)	5.3
Accrued receivables	158.9	51.8
Inventory (Note 5)	(1.3)	(75.7)
Current and long-term other assets (Note 12)	(33.0)	(16.5)
Due to General Partner and affiliates	66.9	(6.0)
Accounts payable and other (Notes 4 and 12)	(56.6)	(63.8)
Environmental liabilities (Note 11)	(21.6)	(62.9)
Accrued purchases	(114.8)	(3.2)
Interest payable	1.2	1.4
Property and other taxes payable	(15.6)	(1.6)
Net cash provided by operating activities	646.9	359.6
Cash used in investing activities:
Additions to property, plant and equipment (Notes 6 and 15)	(994.9)	$ (1,309.0)
Acquisitions (Note 3)	(85.0)
Changes in restricted cash (Note 10)	78.6	$ 36.1
Investments in joint ventures (Note 10)	(2.5)	(28.1)
Distributions from investments in joint ventures in excess of cumulative earnings	6.7	17.7
Other	0.8	(3.7)
Net cash used in investing activities	(996.3)	$ (1,287.0)
Cash provided by financing activities:
Net proceeds from unit issuances (Note 8)	294.8
Distributions to partners (Note 9)	(403.8)	$ (356.9)
Repayments to General Partner (Note 10)	(306.0)	(6.0)
Net borrowings (repayments) under credit facility (Note 8)	(300.0)	140.0
Net commercial paper borrowings (Note 8)	644.9	765.0
Contributions from noncontrolling interest (Notes 9 and 10)	502.6	612.9
Distributions to noncontrolling interest (Notes 9 and 10)	(171.2)	(42.5)
Net cash provided by financing activities	261.3	1,112.5
Net increase (decrease) in cash and cash equivalents	(88.1)	185.1
Cash and cash equivalents at beginning of year	197.9	164.8
Cash and cash equivalents at end of period	$ 109.8	$ 349.9