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Financing (Key Terms of 2020 Debt Issuance) (Details) - Senior notes € in Millions, $ in Millions |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Apr. 08, 2020 EUR (€) | Mar. 30, 2020 EUR (€) | Dec. 31, 2020 EUR (€) | Dec. 31, 2020 USD ($) | Oct. 06, 2020 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount | $ |  |  |  | $ 1,000 |
1.7% senior notes due 2024 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount | € 150 | € 750 | € 900 |  |
Interest rate of debt instrument | 1.70% | 1.70% | 1.70% | 1.70% |
Debt instrument, redemption price, percentage | 100.298% | 99.931% |  |  |
2.1% senior notes due 2026 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount | € 300 | € 500 | € 800 |  |
Interest rate of debt instrument | 2.10% | 2.10% | 2.10% | 2.10% |
Debt instrument, redemption price, percentage | 100.842% | 99.717% |  |  |
2.5% senior notes due 2030 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount | € 300 | € 500 | € 800 |  |
Interest rate of debt instrument | 2.50% | 2.50% | 2.50% | 2.50% |
Debt instrument, redemption price, percentage | 102.166% | 99.642% |  |  |
2.6% senior unsecured notes due 2050 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount | $ |  |  |  |  | $ 1,000
Interest rate of debt instrument |  |  | 2.60% | 2.60% | 2.60%
Debt instrument, redemption price, percentage |  |  | 98.97% |  |

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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=120391452&loc=d3e13212-122682 + Details
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