Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities
Net loss	$ (127.8)	$ (901.3)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, amortization and accretion	177.0	224.5
Amortization of debt-related deferred costs, discounts and premiums	5.1	6.6
Market adjustment on interest rate swaps	0.0	(0.5)
Unit-based compensation charges	13.4	15.6
Loss on long-lived assets, net	34.8	3.9
Gains (Losses) on Extinguishment of Debt	(10.0)	19.8
Goodwill impairment	109.7	890.9
Earnings from unconsolidated affiliates, net, adjusted for cash distributions received	(3.9)	(1.6)
Deferred income taxes	(0.9)	(2.5)
Other	0.3	0.6
Changes in operating assets and liabilities	46.8	45.6
Net cash provided by operating activities	244.5	301.6
Investing activities
Purchases of property, plant and equipment	(79.3)	(122.8)
Investment in unconsolidated affiliates	(6.2)	(40.0)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	9.2	4.4
Net proceeds from sale of assets	943.1	2.9
Net cash provided by (used in) investing activities	866.8	(155.5)
Financing activities
Proceeds from the issuance of long-term debt	1,364.0	3,470.5
Principal payments on long-term debt	(2,279.4)	(3,330.0)
Payments on capital leases	(1.5)	(1.6)
Payments for debt-related deferred costs	(3.4)	(17.3)
Distributions to partners	178.4	77.2
Distributions paid to non-controlling partners	(11.4)	(230.5)
Taxes paid for unit-based compensation vesting	(0.8)	(3.8)
Other	0.1	(1.2)
Net cash used in financing activities	(1,110.8)	(145.9)
Net change in cash	0.5	0.2
Cash at beginning of period	0.5
Cash at end of period	1.0	9.0
Supplemental schedule of noncash investing and financing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	(9.4)	(19.3)
Preferred Units, Class A
Financing activities
Net proceeds from the issuance of Crestwood Midstream Partners LP Class A preferred units	0.0	58.8
Crestwood Midstream Partners LP
Operating activities
Net loss	(130.3)	(653.9)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, amortization and accretion	185.2	208.3
Amortization of debt-related deferred costs, discounts and premiums	5.1	5.9
Unit-based compensation charges	13.4	14.0
Loss on long-lived assets, net	34.8	3.8
Gains (Losses) on Extinguishment of Debt	(10.0)	18.9
Goodwill impairment	109.7	678.5
Earnings from unconsolidated affiliates, net, adjusted for cash distributions received	(3.9)	(1.6)
Deferred income taxes	0.2	0.2
Other	0.3	0.6
Changes in operating assets and liabilities	46.3	55.9
Net cash provided by operating activities	250.8	330.6
Investing activities
Purchases of property, plant and equipment	(79.3)	(122.8)
Investment in unconsolidated affiliates	(6.2)	(39.8)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	9.2	4.4
Net proceeds from sale of assets	943.1	2.9
Net cash provided by (used in) investing activities	866.8	(155.3)
Financing activities
Proceeds from the issuance of long-term debt	1,364.0	2,698.8
Principal payments on long-term debt	(2,279.2)	(2,187.9)
Payments on capital leases	(1.5)	(1.6)
Payments for debt-related deferred costs	(3.4)	(17.3)
Early Repayment of Senior Debt	0.0	(13.6)
Distributions to partners	185.0	710.0
Distributions to partners	196.4	717.6
Distributions paid to non-controlling partners	(11.4)	(7.6)
Proceeds from Issuance of Preferred Limited Partners Units	0.0	58.8
Taxes paid for unit-based compensation vesting	(0.8)	(2.1)
Other	0.1	(0.2)
Net cash used in financing activities	(1,117.2)	(182.7)
Net change in cash	0.4	(7.4)
Cash at beginning of period	0.1	7.6
Cash at end of period	0.5	0.2
Supplemental schedule of noncash investing and financing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	$ (9.4)	$ (19.3)