Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible impairment loss.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Impairments and Assets Held For Sale - Additional Information (Details)	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($) Reporting_Unit	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Property, Plant and Equipment [Abstract]
Number of reporting units \| Reporting_Unit	8
Segment Reporting Information [Line Items]
Goodwill impairments	$ 69,000,000	$ 0	$ 0	$ 0	$ 67,600,000	$ 935,000,000	$ 0	$ 0	$ 69,000,000	$ 1,002,600,000	$ 0
Assets held for sale	6,500,000				16,700,000				$ 6,500,000	16,700,000
Minimum
Segment Reporting Information [Line Items]
Finite-lived intangible asset useful life									2 years
Maximum
Segment Reporting Information [Line Items]
Finite-lived intangible asset useful life									16 years
Lottery systems
Segment Reporting Information [Line Items]
Goodwill impairments	69,000,000				67,600,000
Income tax benefit	$ 14,500,000				$ 24,900,000
Terminal revenue growth rate	2.00%				2.00%
Discount rate	8.00%				8.00%
Goodwill, fair value	$ 22,900,000								$ 22,900,000
Gaming
Segment Reporting Information [Line Items]
Goodwill impairments						935,000,000			$ 0	$ 935,000,000
Income tax benefit						$ 0
Terminal revenue growth rate						2.00%
Discount rate						9.00%