Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities
Net income (loss)	$ (93.7)	$ 18.1
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and accretion	62.3	74.2
Amortization of debt-related deferred costs, discounts and premiums	1.7	2.1
Market adjustment on interest rate swaps	0.0	(0.3)
Unit-based compensation charges	4.5	5.8
Loss on long-lived assets, net	0.0	1.0
Goodwill impairment	109.7	0.0
Earnings from unconsolidated affiliates, net, adjusted for cash distributions received	(0.8)	(3.4)
Deferred income taxes	(0.1)	(0.9)
Other	0.1	0.4
Changes in operating assets and liabilities	50.6	59.6
Net cash provided by operating activities	134.3	156.6
Investing activities
Purchases of property, plant and equipment	(55.6)	(47.4)
Investment in unconsolidated affiliates	(5.5)	(18.1)
Proceeds from sale of assets	0.8	0.5
Other	0.0	(0.2)
Net cash used in investing activities	(60.3)	(65.2)
Financing activities
Proceeds from the issuance of long-term debt	313.5	1,252.7
Principal payments on long-term debt	(286.2)	(1,169.9)
Payments on capital leases	(0.5)	(0.7)
Payments for debt-related deferred costs	(0.1)	(11.1)
Distributions to partners	95.6	25.8
Distributions paid to non-controlling partners	(3.8)	(74.3)
Taxes paid for unit-based compensation vesting	(0.6)	(3.1)
Other	(0.1)	(0.3)
Net cash used in financing activities	(73.4)	(32.5)
Net change in cash	0.6	58.9
Cash at beginning of period	0.5
Cash at end of period	1.1	67.7
Supplemental schedule of noncash investing and financing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	(9.7)	(9.1)
Crestwood Midstream Partners LP
Operating activities
Net income (loss)	(95.3)	29.1
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and accretion	64.9	68.8
Amortization of debt-related deferred costs, discounts and premiums	1.7	1.9
Unit-based compensation charges	4.5	5.2
Loss on long-lived assets, net	0.0	0.8
Goodwill impairment	109.7	0.0
Earnings from unconsolidated affiliates, net, adjusted for cash distributions received	(0.8)	(3.4)
Deferred income taxes	0.2	0.1
Other	0.1	0.0
Changes in operating assets and liabilities	50.7	3.2
Net cash provided by operating activities	135.7	105.7
Investing activities
Purchases of property, plant and equipment	(55.6)	(47.4)
Investment in unconsolidated affiliates	(5.5)	(17.9)
Proceeds from sale of assets	0.8	0.5
Other	0.0	(0.2)
Net cash used in investing activities	(60.3)	(65.0)
Financing activities
Proceeds from the issuance of long-term debt	313.5	1,114.6
Principal payments on long-term debt	(286.0)	(970.4)
Payments on capital leases	(0.5)	(0.7)
Payments for debt-related deferred costs	(0.1)	(11.1)
Distributions to partners	(101.0)	(111.4)
Distributions to partners	101.0	111.4
Distributions paid to non-controlling partners	0.0	0.0
Taxes paid for unit-based compensation vesting	(0.6)	(1.7)
Other	0.0	(0.2)
Net cash used in financing activities	(74.7)	19.1
Net change in cash	0.7	59.8
Cash at beginning of period	0.1	7.6
Cash at end of period	0.8	67.4
Supplemental schedule of noncash investing and financing activities
Net change to property, plant and equipment through accounts payable and accrued expenses	$ (9.7)	$ (9.1)