Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents		$ 26.2	$ 39.6
Accounts receivable:
Trade, net of allowance for bad debt of $0.3 and $0.5, respectively		94.9	80.6
Accrued revenue and other		693.3	447.5
Fair value of derivative assets		22.4	25.0
Other current assets		83.6	58.7
Total current assets		920.4	651.4
Property and equipment, net of accumulated depreciation of $4,332.0 and $3,863.0, respectively		6,388.3	6,652.1
Intangible assets, net of accumulated amortization of $795.1 and $668.8, respectively		1,049.7	1,125.4
Investment in unconsolidated affiliates		28.0	41.6
Fair value of derivative assets		0.2	4.9
Other assets, net		96.6	75.5
Total assets		8,483.2	8,550.9
Current liabilities:
Accounts payable and drafts payable		139.6	60.5
Accrued gas, NGLs, condensate, and crude oil purchases	[1]	521.5	291.5
Fair value of derivative liabilities		34.9	37.1
Current maturities of long-term debt		0.0	349.8
Other current liabilities		202.9	149.1
Total current liabilities		898.9	888.0
Long-term debt		4,363.7	4,244.0
Other long-term liabilities		93.9	94.8
Deferred tax liability, net		137.5	108.6
Fair value of derivative liabilities		2.2	2.5
Members’ equity:
Members’ equity (484,277,258 and 489,381,149 units issued and outstanding, respectively)		1,325.8	1,508.8
Accumulated other comprehensive loss		(1.4)	(15.3)
Non-controlling interest		1,662.6	1,719.5
Total members’ equity		2,987.0	3,213.0
Commitments and contingencies (Note 14)
Total liabilities and members’ equity		$ 8,483.2	$ 8,550.9

[1] Includes related party accounts payable balances of $1.6 million and $1.0 million at December 31, 2021 and December 31, 2020, respectively.