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Financial Instruments, Hedging Activities and Fair Value Measurements (Additional Information) (Details) $ in Millions, € in Billions | 3 Months Ended | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2020 EUR (€) | Jun. 30, 2020 EUR (€) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure |  |  |  |  | $ 1 |  |  |
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value, Net |  |  | $ 73 |  | 48 |  |  |
Fair Value of Debt Instrument Designated as a Hedge of Net Investment in Foreign Operations |  |  | 2,200 |  | 2,200 |  |  |
Accumulated pretax unrealized translation gains (losses) in AOCI, related to both the euro-denominated borrowings and the cross currency swaps that have been designated as hedges of net investments |  |  | 4,938 | $ 4,837 | 5,403 | $ 5,187 | $ 5,010 | $ 4,732
Long-term Debt |  |  | 4,776 |  | 5,031 |  |  |
Long-lived assets fair value amount |  |  | 5,221 |  | 5,363 |  |  |
Finance Lease, Liability |  |  | 8 |  |  |  |  |
Short-term debt |  |  | 1,500 |  | 10 |  |  |
Capital Lease Obligations |  |  |  |  | 11 |  |  |
Interest rate swaps |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  | 525 |  |  |  |  |
Interest Rate Derivatives, at Fair Value, Net |  |  |  |  | 35 | $ 78 |  |
Cross currency swaps |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  | 875 |  | 875 |  |  |
Foreign currency forward contracts |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  | 1,300 |  | 2,800 |  |  |
Foreign Currency Contracts, Liability, Fair Value Disclosure |  |  | 7 |  | 6 |  |  |
Cash Flow Hedging |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  | 43 |  |  |
Net Investment Hedging |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Long-term Debt | € | € 2.0 | € 2.0 |  |  |  |  |  |
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |
Accumulated pretax unrealized translation gains (losses) in AOCI, related to both the euro-denominated borrowings and the cross currency swaps that have been designated as hedges of net investments |  |  | $ 256 |  | $ 235 |  |  |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121616839&loc=d3e45280-112737 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: 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)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. 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