Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities
Net income (loss)	$ 18.6	$ (116.0)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and accretion	242.3	182.6
Amortization of debt-related deferred costs and fair value adjustment	1.7	5.1
Unit-based compensation charges	26.8	22.8
Loss on long-lived assets, net	186.9	19.6
Gain Loss on Acquisition	(75.3)	0.0
Loss on modification/extinguishment of debt	0.0	6.7
(Earnings) loss from unconsolidated affiliates, net, adjusted for cash distributions received	(0.9)	137.5
Deferred income taxes	1.1	(0.4)
Other	0.0	0.2
Changes in operating assets and liabilities	(123.9)	114.8
Net cash provided by operating activities	277.3	372.9
Investing activities
Acquisition, net of cash acquired (Note 3)	(604.3)	0.0
Purchases of property, plant and equipment	(147.3)	(55.8)
Investments in unconsolidated affiliates	(90.2)	(10.2)
Capital distributions from unconsolidated affiliates	9.4	648.4
Net proceeds from sale of assets	315.2	0.5
Net cash provided by (used in) investing activities	(517.2)	582.9
Financing activities
Proceeds from the issuance of long-term debt	3,072.0	2,236.4
Payments on long-term debt	(2,393.1)	(2,695.9)
Payments on finance leases	(31.3)	(2.1)
Payments for deferred financing costs	(1.8)	(11.1)
Net proceeds from issuance of non-controlling interest	0.0	1.0
Payments for Repurchase of Common Stock and Other	0.0	(275.6)
Payments for Crestwood Holdings Transactions	(123.7)	0.0
Distributions to partners	(196.7)	(125.0)
Distributions to non-controlling partner	(31.0)	(29.9)
Distributions to preferred unitholders	(45.0)	(45.0)
Taxes paid for unit-based compensation vesting	(15.8)	(8.3)
Other	(0.6)	0.0
Net cash provided by (used in) financing activities	233.0	(955.5)
Net change in cash	(6.9)	0.3
Cash at beginning of period	13.3	14.0
Cash at end of period	6.4	14.3
Supplemental schedule of noncash investing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	19.9	(9.2)
Crestwood Midstream Partners LP
Operating activities
Net income (loss)	(107.4)	(120.7)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and accretion	248.0	193.2
Amortization of debt-related deferred costs and fair value adjustment	1.7	5.1
Unit-based compensation charges	26.8	22.8
Loss on long-lived assets, net	311.9	19.6
Gain Loss on Acquisition	(75.3)	0.0
Loss on modification/extinguishment of debt	0.0	6.7
(Earnings) loss from unconsolidated affiliates, net, adjusted for cash distributions received	(0.9)	137.5
Deferred income taxes	1.2	0.0
Other	0.0	0.2
Changes in operating assets and liabilities	(123.9)	114.1
Net cash provided by operating activities	282.1	378.5
Investing activities
Acquisition, net of cash acquired (Note 3)	(602.7)	0.0
Purchases of property, plant and equipment	(146.6)	(55.8)
Investments in unconsolidated affiliates	(90.2)	(10.2)
Capital distributions from unconsolidated affiliates	9.4	648.4
Net proceeds from sale of assets	315.2	0.5
Net cash provided by (used in) investing activities	(514.9)	582.9
Financing activities
Proceeds from the issuance of long-term debt	3,072.0	2,236.4
Payments on long-term debt	(2,393.1)	(2,695.9)
Payments on finance leases	(31.3)	(2.1)
Payments for deferred financing costs	(1.8)	(11.1)
Net proceeds from issuance of non-controlling interest	0.0	1.0
Contributions from partner	164.3	0.0
Distributions to partners	(537.6)	(451.3)
Distributions to non-controlling partner	(31.0)	(29.9)
Taxes paid for unit-based compensation vesting	(15.8)	(8.3)
Net cash provided by (used in) financing activities	225.7	(961.2)
Net change in cash	(7.1)	0.2
Cash at beginning of period	12.9	13.7
Cash at end of period	5.8	13.9
Supplemental schedule of noncash investing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	$ 19.9	(9.2)
Non-Controlling Partners
Financing activities
Net proceeds from issuance of non-controlling interest		$ 1.0