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Financial Instruments and Risk Management (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Number of days from period end | 2 days |
Foreign Currency Derivatives [Abstract] |  |
Maximum term of currency derivative instruments (in years) | 1 year |
Long-term Debt, Percentage Bearing Fixed Interest, Amount | $ 9,800 | $ 10,300
Estimate of Fair Value, Fair Value Disclosure |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total debt | 11,556 | 11,961
Estimate of Fair Value, Fair Value Disclosure | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total debt | 10,856 | 11,093
Estimate of Fair Value, Fair Value Disclosure | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total debt | 700 | 868
Estimate of Fair Value, Fair Value Disclosure | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total debt | 0 | 0
Carrying (Reported) Amount, Fair Value Disclosure |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt, Long-term and Short-term, Combined Amount | 9,827 | 10,327
Foreign Exchange Contract [Member] | Other current assets | Level 2 |  |
Interest Rate Derivatives [Abstract] |  |
Derivative, Notional Amount | 817 | 513
Foreign Exchange Contract [Member] | Other assets | Level 2 |  |
Interest Rate Derivatives [Abstract] |  |
Derivative, Notional Amount | $ 100 | $ 100

X
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- Definition Number of days from period end used when calculating fair value. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References No definition available. + Details
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