Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 66.0	$ 12.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	152.9	151.0
Utility credits redeemed (earned)	5.6	(40.4)
Deferred income tax expense	3.0	1.3
Loss on disposition of assets	5.1	0.0
Non-cash unit-based compensation	6.6	6.5
Non-cash loss on derivatives recognized in net income	17.3	7.8
Amortization of debt issuance costs and net discount of senior unsecured notes	1.3	1.2
Loss from unconsolidated affiliate investments	1.1	6.3
Other operating activities	(1.1)	1.4
Changes in assets and liabilities:
Accounts receivable, accrued revenue, and other	(139.9)	(18.7)
Natural gas and NGLs inventory, prepaid expenses, and other	(32.8)	1.2
Accounts payable, accrued product purchases, and other accrued liabilities	222.6	95.6
Net cash provided by operating activities	307.7	225.8
Cash flows from investing activities:
Additions to property and equipment	(60.2)	(23.5)
Other investing activities	1.0	4.3
Net cash used in investing activities	(59.2)	(19.2)
Cash flows from financing activities:
Proceeds from borrowings	500.0	200.0
Repayments on borrowings	(550.0)	(300.0)
Distributions to members	(56.4)	(47.1)
Distributions to non-controlling interests	(34.6)	(26.0)
Redemption of Series B Preferred Units	(50.5)	0.0
Contributions by non-controlling interests	7.3	0.9
Common unit repurchases	(17.0)	0.0
Other financing activities	(4.8)	(1.2)
Net cash used in financing activities	(206.0)	(173.4)
Net increase in cash and cash equivalents	42.5	33.2
Cash and cash equivalents, beginning of period	26.2	39.6
Cash and cash equivalents, end of period	68.7	72.8
Supplemental disclosures of cash flow information:
Cash paid for interest	29.4	17.2
Non-cash investing activities:
Non-cash accrual of property and equipment	(0.2)	(2.7)
Right-of-use assets obtained in exchange for operating lease liabilities	$ 8.5	$ 10.2