Schedule I Schedule I - CONDENSED STATEMENT OF CASH FLOWS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	$ (109.4)	$ 30.2	$ 63.0
Cash flows from investing activities
Change in restricted cash	773.9	(680.5)	(517.7)
Payments to acquire businesses, net of transaction costs and cash acquired	(19.5)	(37.9)	(19.0)
Purchase of additional interests in subsidiaries	0	0	(75.4)
Purchase of Linq/Octavius from non-guarantor	0
Proceeds paid for sale of assets	0
Other	(12.5)	(5.5)	(9.9)
Cash flows used in investing activities	64.8	(1,224.3)	(1,006.3)
Cash flows from financing activities
Issuance of common stock, net of fees	217.2	17.4	0
Other	(14.7)	(13.5)	(22.0)
Transfer to affiliates	0	0	0
Cash flows from financing activities	651.1	1,472.6	811.5
Net increase/(decrease) in cash and cash equivalents	1,009.0	857.6	(82.4)
Cash and cash equivalents, beginning of period	1,757.5	891.2	971.1
Cash and cash equivalents, end of period	2,771.2	1,757.5	891.2
CEC (Parent Guarantor) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows from operating activities	407.9	258.6	182.9
Cash flows from investing activities
Change in restricted cash	(50.5)	0	0
Payments to acquire businesses, net of transaction costs and cash acquired	0	0	(123.5)
Purchase of additional interests in subsidiaries	(581.2)	(232.5)	0
Purchase of Linq/Octavius from non-guarantor	(80.7)	0	0
Proceeds paid for sale of assets	(29.0)	0	0
Other	(0.4)	(0.8)	0
Cash flows used in investing activities	(741.8)	(233.3)	(123.5)
Cash flows from financing activities
Issuance of common stock, net of fees	217.2	17.4	0
Other	0	0	(1.7)
Transfer to affiliates	222.6	(39.2)	(189.8)
Cash flows from financing activities	439.8	(21.8)	(191.5)
Net increase/(decrease) in cash and cash equivalents	105.9	3.5	(132.1)
Cash and cash equivalents, beginning of period	7.4	3.9	136.0
Cash and cash equivalents, end of period	$ 113.3	$ 7.4	$ 3.9