Acquisitions and Dispositions - Pending Acquistion of Bally (Details) (Bally Technologies Inc., USD $)	0 Months Ended
	Aug. 01, 2014	Aug. 01, 2014
Business Acquisition [Line Items]
Share price		$ 83.30
Purchase price	$ 5,100,000,000
Debt assumed		1,800,000,000
Termination fee, breach by lenders
Business Acquisition [Line Items]
Termination fee, liability	105,000,000	105,000,000
Termination fee, lack of approval from authoritative body
Business Acquisition [Line Items]
Termination fee, liability	105,000,000	105,000,000
Termination fee, superior proposal
Business Acquisition [Line Items]
Termination fee, asset	$ 80,000,000	$ 80,000,000