STATEMENTS OF CONSOLIDATED OPERATIONS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues:
Third parties	$ 29,196.5	$ 22,965.6	$ 26,955.6
Related parties	45.0	56.7	72.3
Total revenues	29,241.5	23,022.3	27,027.9
Operating costs and expenses:
Third parties	24,444.7	18,539.5	22,588.2
Related parties	1,112.8	1,104.0	1,080.5
Total operating costs and expenses	25,557.5	19,643.5	23,668.7
General and administrative costs:
Third parties	59.6	47.0	78.5
Related parties	121.5	113.1	114.1
Total general and administrative costs	181.1	160.1	192.6
Total costs and expenses	25,738.6	19,803.6	23,861.3
Equity in income of unconsolidated affiliates	426.0	362.0	373.6
Operating income	3,928.9	3,580.7	3,540.2
Other income (expense):
Interest expense	(984.6)	(982.6)	(961.8)
Change in fair market value of Liquidity Option Agreement	(64.3)	(24.5)	(25.4)
Other, net	1.3	2.8	2.9
Total other expense, net	(1,047.6)	(1,004.3)	(984.3)
Income before income taxes	2,881.3	2,576.4	2,555.9
Benefit from (provision for) income taxes	(25.7)	(23.4)	2.5
Net income	2,855.6	2,553.0	2,558.4
Net income attributable to noncontrolling interests	(56.3)	(39.9)	(37.2)
Net income attributable to limited partners	$ 2,799.3	$ 2,513.1	$ 2,521.2
Earnings per unit:
Basic earnings per unit (in dollars per unit)	$ 1.30	$ 1.20	$ 1.28
Diluted earnings per unit (in dollars per unit)	$ 1.30	$ 1.20	$ 1.26