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Restructuring - Summary of Restructuring Activities (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Restructuring Reserve [Roll Forward] |  |  |
Accrual as of beginning of period | $ 50.2 | $ 44.3 | $ 44.2
Charges | 81.1 | 107.0 | 75.4
Utilization, Cash | (53.6) | (100.6) | (66.1)
Utilization, Non-cash | (5.9) | (0.5) | (9.2)
Accrual as of end of period | 71.8 | 50.2 | 44.3
Employee termination benefits |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Accrual as of beginning of period | 45.1 | 38.7 | 38.5
Charges | 70.0 | 88.6 | 54.1
Utilization, Cash | (48.6) | (82.2) | (53.9)
Utilization, Non-cash | 0.0 | 0.0 | 0.0
Accrual as of end of period | 66.5 | 45.1 | 38.7
Asset impairments |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Accrual as of beginning of period | 0.0 | 0.0 | 0.0
Charges | 3.9 | 0.5 | 9.2
Utilization, Cash | 0.0 | 0.0 | 0.0
Utilization, Non-cash | (3.9) | (0.5) | (9.2)
Accrual as of end of period | 0.0 | 0.0 | 0.0
Contract termination costs |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Accrual as of beginning of period | 5.1 | 5.6 | 5.7
Charges | 1.7 | 0.5 | 0.3
Utilization, Cash | (1.5) | (1.0) | (0.4)
Utilization, Non-cash | 0.0 | 0.0 | 0.0
Accrual as of end of period | 5.3 | 5.1 | 5.6
Other related costs |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Accrual as of beginning of period | 0.0 | 0.0 | 0.0
Charges | 5.5 | 17.4 | 11.8
Utilization, Cash | (3.5) | (17.4) | (11.8)
Utilization, Non-cash | (2.0) | 0.0 | 0.0
Accrual as of end of period | $ 0.0 | $ 0.0 | $ 0.0

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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