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Divestitures and Held for Sale - Summary of Amounts Included in Discontinued Operations (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Discontinued Operations and Disposal Groups [Abstract] |  |  |  |
Net sales | $ 455.8 | $ 1,527.2 | $ 996.7 | $ 2,733.1
Cost of products sold | 312.7 | 934.5 | 691.5 | 1,740.3
Selling, general and administrative expenses | 65.8 | 260.0 | 142.5 | 514.1
Restructuring costs, net | 1.3 | 2.5 | 1.3 | 5.0
Impairment of goodwill, intangibles and other assets | 11.0 | 454.0 | 185.7 | 454.0
Operating income (loss) | 65.0 | (123.8) | (24.3) | 19.7
Non-operating expense (income) | 5.9 | (461.4) | 2.7 | (461.0)
Income (loss) before income taxes | 59.1 | 337.6 | (27.0) | 480.7
Income tax expense (benefit) | (52.3) | (129.5) | (45.6) | (164.6)
Net income (loss) | $ 6.8 | $ 208.1 | $ (72.6) | $ 316.1

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- Definition Amount before tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until its disposal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721523-107759 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 + Details
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