UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Net income	$ 1,883.3	$ 1,864.9
Reconciliation of net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	1,155.3	1,147.7
Asset impairment charges	22.0	139.1
Loss due to Pascagoula fire	7.1	0.0
Equity in income of unconsolidated affiliates	(269.8)	(302.5)
Distributions received on earnings from unconsolidated affiliates	281.6	362.4
Net losses (gains) attributable to asset sales	(2.3)	14.7
Gains on early extinguishment of debt	0.0	(1.4)
Deferred income tax expense (benefit)	5.3	(13.3)
Change in fair market value of derivative instruments	42.1	(7.7)
Change in fair market value of Liquidity Option Agreement	28.0	15.8
Net effect of changes in operating accounts	(489.7)	(627.9)
Other operating activities	(3.9)	(0.6)
Net cash flows provided by operating activities	2,659.0	2,591.2
Investing activities:
Capital expenditures	(2,443.9)	(2,630.5)
Contributions in aid of construction costs	34.1	11.4
Increase in restricted cash	(261.4)	(46.2)
Cash used for business combinations, net of cash received	(1,000.0)	(1,045.1)
Investments in unconsolidated affiliates	(119.9)	(130.7)
Distributions received for return of capital from unconsolidated affiliates	51.9	0.0
Proceeds from asset sales	43.9	1,537.3
Other investing activities	(0.4)	(4.4)
Cash used in investing activities	(3,695.7)	(2,308.2)
Financing activities:
Borrowings under debt agreements	50,183.8	17,113.7
Repayments of debt	(48,776.5)	(16,139.2)
Debt issuance costs	(10.5)	(23.9)
Cash distributions paid to limited partners	(2,448.3)	(2,185.1)
Cash payments made in connection with distribution equivalent rights	(8.5)	(5.6)
Cash distributions paid to noncontrolling interests	(35.7)	(33.2)
Cash contributions from noncontrolling interests	20.1	37.4
Net cash proceeds from the issuance of common units	2,170.4	1,011.4
Other financing activities	(20.0)	(52.4)
Cash provided by (used in) financing activities	1,074.8	(276.9)
Net change in cash and cash equivalents	38.1	6.1
Cash and cash equivalents, beginning balance	19.0	74.4
Cash and cash equivalents, ending balance	$ 57.1	$ 80.5