Intangible Assets, net and Goodwill - Reconciliation of the Carrying Amount of Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Goodwill [Roll Forward]
Balance at the beginning of the period	$ 2,888.4
Foreign currency adjustments	17.7
Balance at the end of the period	2,906.1
Gaming
Goodwill [Roll Forward]
Balance at the beginning of the period	2,428.6
Foreign currency adjustments	15.9
Balance at the end of the period	2,444.5
Lottery
Goodwill [Roll Forward]
Balance at the beginning of the period	350.0
Foreign currency adjustments	1.8
Balance at the end of the period	351.8
Interactive
Goodwill [Roll Forward]
Balance at the beginning of the period	109.8
Foreign currency adjustments	0.0
Balance at the end of the period	$ 109.8