UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED EQUITY - USD ($) $ in Millions	Total	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests in Consolidated Subsidiaries [Member]	Common Limited Partners Interests [Member]	Treasury Units [Member]
Balance at Dec. 31, 2019	$ 25,827.5	$ 71.4	$ 1,063.5	$ 24,692.6	$ 0.0
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	2,435.8	0.0	51.0	2,384.8	0.0
Cash distributions paid to common unitholders	(1,946.9)	0.0	0.0	(1,946.9)	0.0
Cash payments made in connection with distribution equivalent rights	(12.9)	0.0	0.0	(12.9)	0.0
Cash distributions paid to noncontrolling interests	(61.8)	0.0	(61.8)	0.0	0.0
Cash contributions from noncontrolling interests	19.7	0.0	19.7	0.0	0.0
Amortization of fair value of equity-based awards	80.6	0.0	0.0	80.6	0.0
Repurchase and cancellation of common units under 2019 Buyback Program	(140.1)	0.0	0.0	(140.1)	0.0
Common units issued to Skyline North Americas, Inc. in connection with settlement of Liquidity Option	1,297.3	0.0	0.0	1,297.3	0.0
Treasury units acquired in connection with settlement of Liquidity Option, at cost	(1,297.3)	0.0	0.0	0.0	(1,297.3)
Cash flow hedges	(218.4)	(218.4)	0.0	0.0	0.0
Other, net	(42.1)	(0.1)	(7.7)	(34.3)	0.0
Balance at Jun. 30, 2020	25,941.4	(147.1)	1,064.7	26,321.1	(1,297.3)
Balance at Mar. 31, 2020	26,114.2	122.3	1,063.8	26,225.4	(1,297.3)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,060.8	0.0	26.1	1,034.7	0.0
Cash distributions paid to common unitholders	(972.7)	0.0	0.0	(972.7)	0.0
Cash payments made in connection with distribution equivalent rights	(7.1)	0.0	0.0	(7.1)	0.0
Cash distributions paid to noncontrolling interests	(31.9)	0.0	(31.9)	0.0	0.0
Cash contributions from noncontrolling interests	14.5	0.0	14.5	0.0	0.0
Amortization of fair value of equity-based awards	41.5	0.0	0.0	41.5	0.0
Cash flow hedges	(269.4)	(269.4)	0.0	0.0	0.0
Other, net	(8.5)	0.0	(7.8)	(0.7)	0.0
Balance at Jun. 30, 2020	25,941.4	(147.1)	1,064.7	26,321.1	(1,297.3)
Balance at Dec. 31, 2020	25,377.4	(165.2)	1,073.3	25,766.6	(1,297.3)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	2,506.7	0.0	54.0	2,452.7	0.0
Cash distributions paid to common unitholders	(1,965.0)	0.0	0.0	(1,965.0)	0.0
Cash payments made in connection with distribution equivalent rights	(15.2)	0.0	0.0	(15.2)	0.0
Cash distributions paid to noncontrolling interests	(71.4)	0.0	(71.4)	0.0	0.0
Cash contributions from noncontrolling interests	18.1	0.0	18.1	0.0	0.0
Amortization of fair value of equity-based awards	79.5	0.0	0.0	79.5	0.0
Repurchase and cancellation of common units under 2019 Buyback Program	(13.9)	0.0	0.0	(13.9)	0.0
Cash flow hedges	(33.2)	(33.2)	0.0	0.0	0.0
Other, net	(36.2)	(0.3)	0.0	(35.9)	0.0
Balance at Jun. 30, 2021	25,846.8	(198.7)	1,074.0	26,268.8	(1,297.3)
Balance at Mar. 31, 2021	26,070.2	181.0	1,077.9	26,108.6	(1,297.3)
Increase (Decrease) in Partners' Equity [Roll Forward]
Net income	1,145.0	0.0	32.7	1,112.3	0.0
Cash distributions paid to common unitholders	(983.3)	0.0	0.0	(983.3)	0.0
Cash payments made in connection with distribution equivalent rights	(8.2)	0.0	0.0	(8.2)	0.0
Cash distributions paid to noncontrolling interests	(41.6)	0.0	(41.6)	0.0	0.0
Cash contributions from noncontrolling interests	5.0	0.0	5.0	0.0	0.0
Amortization of fair value of equity-based awards	40.7	0.0	0.0	40.7	0.0
Cash flow hedges	(379.6)	(379.6)	0.0	0.0	0.0
Other, net	(1.4)	(0.1)	0.0	(1.3)	0.0
Balance at Jun. 30, 2021	$ 25,846.8	$ (198.7)	$ 1,074.0	$ 26,268.8	$ (1,297.3)