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Disposition (Real Estate Dispositions) (Details) $ in Millions | Aug. 02, 2016 USD ($)
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Refund from Tax Settlement | $ 160.0
Proceeds from Divestiture of Businesses | 900.0
Proceeds from Divestiture of Businesses, Net of Cash Divested | 589.0
Borgata [Member] |
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation | 4.3
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax | 181.7
Refund from Tax Settlement | $ 140.0

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