Intangible Assets and Goodwill - Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Segment Reporting_Unit		Dec. 31, 2012 Segment Reporting_Unit
Goodwill
Balance at the beginning of the period	$ 801.4		$ 768.4
Acquisitions	385.6		18.9
Foreign currency adjustments	5.3		14.1
Impairment	(5.4)	[1]
Reallocation of Goodwill	0		0
Balance at the end of the period	1,186.9		801.4
Number of reporting units	6		7
Number of operating segments	4		7
Gaming
Goodwill
Decrease in percentage of fair value in excess of carrying amount that could result in an impairment of goodwill	9.00%
Printed Products
Goodwill
Balance at the beginning of the period	328.0		334.1
Acquisitions	0		5.4
Foreign currency adjustments	(2.4)		1.3
Impairment	(5.4)	[1]
Reallocation of Goodwill	20.0		(12.8)
Balance at the end of the period	340.2		328.0
Lottery Systems
Goodwill
Balance at the beginning of the period	210.7		186.6
Acquisitions	0		9.9
Foreign currency adjustments	2.7		1.4
Impairment	0	[1]
Reallocation of Goodwill	(39.7)		12.8
Balance at the end of the period	173.7		210.7
Gaming
Goodwill
Balance at the beginning of the period	262.7		247.7
Acquisitions	385.6		3.6
Foreign currency adjustments	5.0		11.4
Impairment	0	[1]
Reallocation of Goodwill	19.7		0
Balance at the end of the period	$ 673.0		$ 262.7

[1] At December 31, 2013, $5.4 million of goodwill was written off associated with the exit of our Provoloto instant lottery game operations in Mexico. See Note 3 (Acquisitions and Dispositions) for additional information.