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SEGMENT INFORMATION (Operating Revenue and Operating Income by Operating Segment) (Detail) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 USD ($) segment | Mar. 31, 2015 USD ($) | Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items] |  |  |
Operating revenue: | $ 728.3 | $ 651.8 |
Operating income: | 176.2 | 154.2 |
Total assets: | $ 6,732.9 |  | $ 4,501.5
Number of reporting segments | segment | 4 |  |
Number of operating segments | segment | 4 |  |
General Corporate Expense |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income: | $ (71.6) | (78.4) |
Total assets: | 322.9 |  | 321.0
U.S. Information Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue: | 294.9 | 284.5 |
Operating income: | 122.8 | 123.1 |
Total assets: | 1,858.9 |  | 1,869.6
International |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue: | 158.1 | 135.4 |
Operating income: | 19.4 | 27.1 |
Total assets: | 3,057.1 |  | 844.5
Workforce Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue: | 180.1 | 148.7 |
Operating income: | 78.6 | 60.0 |
Total assets: | 1,292.6 |  | 1,268.5
Global Consumer Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating revenue: | 95.2 | 83.2 |
Operating income: | 27.0 | $ 22.4 |
Total assets: | $ 201.4 |  | $ 197.9

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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