Intangible Assets and Goodwill (Schedule of Goodwil)l (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Goodwill [Roll Forward]
Balance at the beginning of the period			$ 4,108.3	$ 1,183.1	$ 1,183.1
Acquisitions					2,956.1
Foreign currency adjustments			(88.1)		(30.9)
Balance at the end of the period	$ 3,485.2		3,485.2		4,108.3
Goodwill impairment	(535.0)	$ 0.0	(535.0)	0.0
Interactive
Goodwill [Roll Forward]
Balance at the beginning of the period			3,499.7	612.7	612.7
Acquisitions					2,902.8
Foreign currency adjustments			(77.0)		(15.8)
Balance at the end of the period	2,887.7		2,887.7		3,499.7
Goodwill impairment			(535.0)
Lottery
Goodwill [Roll Forward]
Balance at the beginning of the period			498.8	513.9	513.9
Acquisitions					0.0
Foreign currency adjustments			(11.1)		(15.1)
Balance at the end of the period	487.7		487.7		498.8
Goodwill impairment			0.0
Interactive
Goodwill [Roll Forward]
Balance at the beginning of the period			109.8	$ 56.5	56.5
Acquisitions					53.3
Foreign currency adjustments			0.0		0.0
Balance at the end of the period	$ 109.8		109.8		$ 109.8
Goodwill impairment			$ 0.0