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Financing (Long-Term Debt Repayments) (Narrative) (Details) $ / shares in Units, € in Millions, $ in Millions |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 24, 2019 USD ($) $ / shares | Jul. 08, 2019 EUR (€) | Sep. 30, 2018 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Payments of debt extinguishment costs | $ 7.0 |  |  | $ 6.5 | $ 0.0 | $ 0.0
Payments of debt extinguishment costs, after-tax | $ 5.0 |  |  |  |  |
Payments of debt extinguishment costs, per diluted share | $ / shares | $ 0.01 |  |  |  |  |
Senior notes | 2.4% senior unsecured notes due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of debt | $ 500.0 |  |  |  |  |
Interest rate of debt instrument | 2.40% |  |  | 2.40% |  |
Senior notes | 5.0% senior unsecured notes due 2020 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of debt | $ 375.0 |  |  |  |  |
Interest rate of debt instrument | 5.00% |  |  |  |  |
Senior notes | 1.0% senior unsecured notes due 2019 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of debt | € |  | € 600 |  |  |  |
Interest rate of debt instrument |  |  |  | 1.00% |  |
Senior notes | 1.65% senior unsecured notes due 2018 |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Repayments of debt |  |  | $ 500.0 |  |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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