Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities
Net loss	$ (19.1)	$ (130.8)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, amortization and accretion	97.1	126.7
Amortization of debt-related deferred costs, discounts and premiums	3.5	3.4
Unit-based compensation charges	12.7	9.3
Gain (loss) on long-lived assets	0.0	32.7
Goodwill impairment	0.0	109.7
Gains (Losses) on Extinguishment of Debt	37.7	(10.0)
Earnings from unconsolidated affiliates, net, adjusted for cash distributions received	0.5	(0.8)
Deferred income taxes	(0.7)	(0.6)
Other	(0.4)	0.1
Changes in operating assets and liabilities	1.6	53.3
Net cash provided by operating activities	132.9	193.0
Investing activities
Purchases of property, plant and equipment	(88.7)	(76.2)
Investment in unconsolidated affiliates	(18.5)	(5.5)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	21.1	5.5
Net proceeds from sale of assets	1.0	942.0
Net cash provided by (used in) investing activities	(85.1)	865.8
Financing activities
Proceeds from the issuance of long-term debt	1,680.4	1,078.8
Payments on long-term debt	(1,630.3)	(1,987.7)
Payments on capital leases	(1.3)	(0.9)
Payments for debt-related deferred costs	(1.0)	(3.3)
Distributions to partners	83.6	137.0
Distributions paid to non-controlling partners	(7.6)	(7.6)
Taxes paid for unit-based compensation vesting	(3.6)	(0.6)
Other	(0.1)	(0.1)
Net cash used in financing activities	(47.1)	(1,058.4)
Net change in cash	0.7	0.4
Cash at beginning of period	1.6	0.5
Cash at end of period	2.3	0.9
Supplemental schedule of noncash investing and financing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	(6.9)	(11.9)
Crestwood Midstream Partners LP
Operating activities
Net loss	(23.3)	(130.9)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, amortization and accretion	102.6	132.0
Amortization of debt-related deferred costs, discounts and premiums	3.5	3.4
Unit-based compensation charges	12.7	9.3
Gain (loss) on long-lived assets	0.0	32.7
Goodwill impairment	0.0	109.7
Gains (Losses) on Extinguishment of Debt	37.7	(10.0)
Earnings from unconsolidated affiliates, net, adjusted for cash distributions received	0.5	(0.8)
Deferred income taxes	0.0	0.2
Other	(0.4)	0.1
Changes in operating assets and liabilities	2.8	50.3
Net cash provided by operating activities	136.1	196.0
Investing activities
Purchases of property, plant and equipment	(88.7)	(76.2)
Investment in unconsolidated affiliates	(18.5)	(5.5)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	21.1	5.5
Net proceeds from sale of assets	1.0	942.0
Net cash provided by (used in) investing activities	(85.1)	865.8
Financing activities
Proceeds from the issuance of long-term debt	1,680.4	1,078.8
Payments on long-term debt	(1,630.3)	(1,987.5)
Payments on capital leases	(1.3)	(0.9)
Payments for debt-related deferred costs	(1.0)	(3.3)
Distributions to partners	(94.5)	(148.2)
Distributions to partners	94.5	148.2
Taxes paid for unit-based compensation vesting	(3.6)	(0.6)
Net cash used in financing activities	(50.3)	(1,061.7)
Net change in cash	0.7	0.1
Cash at beginning of period	1.3	0.1
Cash at end of period	2.0	0.2
Supplemental schedule of noncash investing and financing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	$ (6.9)	$ (11.9)