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Restructuring - Summary of Restructuring Activities (Detail) - USD ($) $ in Millions | 9 Months Ended
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Sep. 26, 2015 | Sep. 27, 2014
Restructuring Reserve [Roll Forward] |  |
Accrual as of beginning of period | $ 50.2 |
2015 | 64.0 |
Utilization cash | (40.6) |
Utilization non-cash | (3.5) |
Accrual as of end of period | 70.1 |
Employee termination benefits |  |
Restructuring Reserve [Roll Forward] |  |
Accrual as of beginning of period | 45.1 |
2015 | 55.6 |
Utilization cash | (35.9) |
Utilization non-cash | 0.0 |
Accrual as of end of period | 64.8 |
Asset impairment charges |  |
Restructuring Reserve [Roll Forward] |  |
Accrual as of beginning of period | 0.0 |
2015 | 1.6 | $ 0.1
Utilization cash | 0.0 |
Utilization non-cash | (1.6) |
Accrual as of end of period | 0.0 |
Contract termination costs |  |
Restructuring Reserve [Roll Forward] |  |
Accrual as of beginning of period | 5.1 |
2015 | 1.6 |
Utilization cash | (1.4) |
Utilization non-cash | 0.0 |
Accrual as of end of period | 5.3 |
Other related costs |  |
Restructuring Reserve [Roll Forward] |  |
Accrual as of beginning of period | 0.0 |
2015 | 5.2 |
Utilization cash | (3.3) |
Utilization non-cash | (1.9) |
Accrual as of end of period | $ 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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