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Restructuring and impairment charges (credits) - expected costs to be incurred (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 28, 2020 USD ($) | Jun. 28, 2020 USD ($)
2019 Footprint realignment plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Aggregate restructuring charges |  | $ 15.0
Restructuring reserve | $ 12.4 | 12.4
Restructuring expenses | 3.9 | 6.4
Aggregate restructuring related charges |  | 13.0
2019 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 58.0 | 58.0
Expected cash outlays | 55.0 | 55.0
Expected capital expenditures | 27.0 | 27.0
2019 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 67.0 | 67.0
Expected cash outlays | 63.0 | 63.0
Expected capital expenditures | 33.0 | 33.0
2018 Footprint realignment plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Aggregate restructuring charges |  | 62.1
Restructuring reserve | 50.5 | 50.5
Restructuring expenses | 1.5 | 2.7
Aggregate restructuring related charges |  | 9.9
2018 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 102.0 | 102.0
Expected cash outlays | 99.0 | 99.0
Expected capital expenditures | 19.0 | 19.0
2018 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 133.0 | 133.0
Expected cash outlays | 127.0 | 127.0
Expected capital expenditures | 23.0 | 23.0
2014 Footprint realignment plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Aggregate restructuring charges |  | 13.4
Restructuring reserve | 3.7 | 3.7
Restructuring expenses | 0.8 | 1.7
Aggregate restructuring related charges |  | 33.9
Increase (decrease) in restructuring reserve |  | 3.0
2014 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 51.0 | 51.0
Expected cash outlays | 42.0 | 42.0
Expected capital expenditures | 25.0 | 25.0
2014 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 55.0 | 55.0
Expected cash outlays | 46.0 | 46.0
Expected capital expenditures | 26.0 | 26.0
Termination benefits | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 10.0 | 10.0
Termination benefits | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 13.0 | 13.0
Termination benefits | 2019 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 16.0 | 16.0
Termination benefits | 2019 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 20.0 | 20.0
Termination benefits | 2018 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 60.0 | 60.0
Termination benefits | 2018 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 70.0 | 70.0
Termination benefits | 2014 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 12.0 | 12.0
Termination benefits | 2014 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 13.0 | 13.0
Other Restructuring costs | 2019 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 2.0 | 2.0
Other Restructuring costs | 2019 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 2.0 | 2.0
Other Restructuring costs | 2018 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 2.0 | 2.0
Other Restructuring costs | 2018 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 4.0 | 4.0
Other Restructuring costs | 2014 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 1.0 | 1.0
Other Restructuring costs | 2014 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 2.0 | 2.0
Special Termination Benefit And Other Restructuring | 2019 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 18.0 | 18.0
Special Termination Benefit And Other Restructuring | 2019 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 22.0 | 22.0
Special Termination Benefit And Other Restructuring | 2018 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 62.0 | 62.0
Special Termination Benefit And Other Restructuring | 2018 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 74.0 | 74.0
Special Termination Benefit And Other Restructuring | 2014 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 13.0 | 13.0
Special Termination Benefit And Other Restructuring | 2014 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 15.0 | 15.0
Accelerated Depreciation And Other Costs | 2019 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 40.0 | 40.0
Accelerated Depreciation And Other Costs | 2019 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 45.0 | 45.0
Accelerated Depreciation And Other Costs | 2018 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 40.0 | 40.0
Accelerated Depreciation And Other Costs | 2018 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 59.0 | 59.0
Accelerated Depreciation And Other Costs | 2014 Footprint realignment plan | Minimum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | 38.0 | 38.0
Accelerated Depreciation And Other Costs | 2014 Footprint realignment plan | Maximum |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring charges | $ 40.0 | $ 40.0

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- Definition The increase (decrease) during the period in the carrying amount (including both current and noncurrent portions of the accrual) of the liability pertaining to the exit from or disposal of business activities or restructuring pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination and to asset retirement obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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