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Derivative Instruments Derivative Instruments Net Investment Hedges (Details 1) $ in Millions, ₩ in Billions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2018 KRW (₩) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Feb. 29, 2012
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |  |
Payments to increase investment in Samsung Bioepis |  |  | $ 0.0 | $ 676.6 | $ 0.0 |
Unrealized gain (loss) on net investment hedge in AOCI |  |  | $ 0.5 | (27.3) | $ 113.0 |
Net Investment Hedge |  |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |  |
Forward contracts duration |  |  | 10 months |  |  |
Unrealized gain (loss) on net investment hedge in AOCI |  |  | $ 1.5 | 3.8 |  |
Derivative qualifying as hedge, excluded component, after tax | $ 7.3 |  | 2.9 | 7.3 |  |
Gains (losses) on net investment hedge |  |  | 25.3 | (3.8) |  |
Gains (losses) on net investment hedge, excluded component |  |  | 3.3 | 0.0 |  |
Other income (expense) | Net Investment Hedge |  |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |  |
Net gains (losses) in net income of foreign currency forward contracts, excluded component |  |  | $ 7.0 | $ 1.5 |  |
Samsung Bioepis |  |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |  |
Samsung Bioepis, ownership percentage before additional purchase transaction | 5.00% |  |  | 5.00% |  |
Samsung Bioepis, ownership percentage |  |  | 49.90% |  |  | 15.00%
Payments to increase investment in Samsung Bioepis | $ 676.6 | ₩ 759.5 |  |  |  |

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- Definition Amount, after tax, of accumulated gain (loss) from increase (decrease) in value of excluded component of derivative hedge. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80784-113994 + Details
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- Definition The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1),(2) -URI http://asc.fasb.org/extlink&oid=109977999&loc=d3e76258-113986 + Details
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