Intangible Assets, net and Goodwill - Reconciliation of the Carrying Amount of Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Roll Forward]
Balance at the beginning of the period	$ 3,013.7
Impairment charges	(1.7)
Balance at the end of the period	3,012.0
Interactive
Goodwill [Roll Forward]
Balance at the beginning of the period	2,486.0
Impairment charges	(4.9)
Balance at the end of the period	2,481.1
Lottery
Goodwill [Roll Forward]
Balance at the beginning of the period	417.9
Impairment charges	3.2
Balance at the end of the period	421.1
Interactive
Goodwill [Roll Forward]
Balance at the beginning of the period	109.8
Impairment charges	0.0
Balance at the end of the period	$ 109.8