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Goodwill and Other Intangible Assets, Net - Summary of Goodwill Activity (Detail) $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($)
Goodwill [Line Items] |
Net Book Value, Beginning balance | $ 10,560.1
Other Adjustments | (911.4)
Foreign Exchange | 23.7
Gross Carrying Amount | 10,532.5
Accumulated Impairment Charges | (860.1)
Net Book Value, Ending balance | 9,672.4
Live [Member] | Operating Segments [Member] |
Goodwill [Line Items] |
Net Book Value, Beginning balance | 3,910.8
Other Adjustments | (104.7)
Foreign Exchange | 8.8
Gross Carrying Amount | 4,239.8
Accumulated Impairment Charges | (424.9)
Net Book Value, Ending balance | 3,814.9
Learn [Member] | Operating Segments [Member] |
Goodwill [Line Items] |
Net Book Value, Beginning balance | 2,854.2
Foreign Exchange | 13.2
Gross Carrying Amount | 3,302.6
Accumulated Impairment Charges | (435.2)
Net Book Value, Ending balance | 2,867.4
Work [Member] | Operating Segments [Member] |
Goodwill [Line Items] |
Net Book Value, Beginning balance | 1,881.8
Other Adjustments | (624.4)
Foreign Exchange | (1.8)
Gross Carrying Amount | 1,255.6
Net Book Value, Ending balance | 1,255.6
Play [Member] | Operating Segments [Member] |
Goodwill [Line Items] |
Net Book Value, Beginning balance | 1,159.3
Other Adjustments | (115.7)
Foreign Exchange | 2.5
Gross Carrying Amount | 1,046.1
Net Book Value, Ending balance | 1,046.1
Other [Member] | Operating Segments [Member] |
Goodwill [Line Items] |
Net Book Value, Beginning balance | 754.0
Other Adjustments | (66.6)
Foreign Exchange | 1.0
Gross Carrying Amount | 688.4
Net Book Value, Ending balance | $ 688.4

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