Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income	$ 189.9	$ 22.0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	311.9	302.9
Utility credits redeemed (earned)	11.6	(43.8)
Deferred income tax expense	1.2	7.9
(Gain) Loss on disposition of assets	4.7	(0.3)
Non-cash unit-based compensation	12.3	12.9
Amortization of designated cash flow hedge	0.1	6.0
Payments to terminate interest rate swaps	0.0	(1.3)
Non-cash (gain) loss on derivatives recognized in net income	(18.6)	34.2
Loss on extinguishment of debt	0.5	0.0
Amortization of debt issuance costs and net discount of senior unsecured notes	2.6	2.5
Loss from unconsolidated affiliate investments	2.3	7.6
Other operating activities	(2.0)	(2.5)
Changes in assets and liabilities:
Accounts receivable, accrued revenue, and other	(226.7)	(61.4)
Natural gas and NGLs inventory, prepaid expenses, and other	(83.2)	(47.8)
Accounts payable, accrued product purchases, and other accrued liabilities	276.0	163.3
Net cash provided by operating activities	482.6	402.2
Cash flows from investing activities:
Additions to property and equipment	(124.1)	(62.5)
Contributions to unconsolidated affiliate investments	(26.6)	0.0
Acquisitions, net of cash acquired	0.0	(55.0)
Distribution from unconsolidated affiliate investments in excess of earnings	0.4	3.7
Other investing activities	1.0	1.6
Net cash used in investing activities	(149.3)	(112.2)
Cash flows from financing activities:
Proceeds from borrowings	1,135.0	539.5
Repayments on borrowings	(1,177.0)	(679.5)
Distributions to members	(111.7)	(93.8)
Distributions to non-controlling interests	(76.8)	(62.0)
Payment of installment payable for the Amarillo Rattler Acquisition	(10.0)	0.0
Redemption of Series B Preferred Units	(50.5)	0.0
Contributions from non-controlling interests	9.3	1.9
Common unit repurchases	(50.7)	(2.0)
Other financing activities	(9.0)	(0.9)
Net cash used in financing activities	(341.4)	(296.8)
Net decrease in cash and cash equivalents	(8.1)	(6.8)
Cash and cash equivalents, beginning of period	26.2	39.6
Cash and cash equivalents, end of period	18.1	32.8
Supplemental disclosures of cash flow information:
Cash paid for interest	107.8	97.1
Cash paid for income taxes	0.8	0.2
Non-cash investing activities:
Non-cash accrual of property and equipment	(1.6)	6.9
Non-cash acquisitions	0.0	16.5
Right-of-use assets obtained in exchange for operating lease liabilities	$ 15.3	$ 10.7