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Commitments and Contingent Liabilities (Additional Information) (Details) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2020 USD ($) Location | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) Location | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) | Jun. 30, 2010 Location | Jun. 30, 2009 Location
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount Awarded to Other Party |  |  | $ 25 |  |  |  |
Reserves for environmental contingencies | $ 289 |  | 289 |  | $ 304 |  |
Reserves for environmental contingencies classified as current liabilities | 81 |  | 81 |  | 62 |  |
Environmental remediation charge | 6 | $ 24 | 21 | $ 75 |  |  |
Payments for Environmental Liabilities | 15 | 21 | 52 | 57 |  |  |
Environmental remediation charges | 0 | $ 21 | 12 | $ 61 |  |  |
Outstanding letters of credit | 137 |  | 137 |  |  |  |
Guarantees | 9 |  | 9 |  |  |  |
Minimum [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Unreserved loss contingencies related to environmental matters |  |  | 100 |  |  |  |
Maximum [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Unreserved loss contingencies related to environmental matters |  |  | 200 |  |  |  |
Jersey City Manufacturing Plant [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Reserves for environmental contingencies | 99 |  | 99 |  | 134 |  |
Legacy Glass and Chemical Sites [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Reserves for environmental contingencies | 99 |  | 99 |  | 96 |  |
Other Environmental Contingencies [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Reserves for environmental contingencies | $ 91 |  | $ 91 |  | $ 74 |  |
Judicial Consent Order [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Total number of sites to be remediated | Location | 14 |  | 14 |  |  | 20 | 19
Excavation of Soil [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Percentage of the total remaining reserve | 20.00% |  | 20.00% |  |  |  |
Soil Treatment, Transportation And Disposal Of Excavated Soil [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Percentage of the total remaining reserve | 15.00% |  | 15.00% |  |  |  |
Construction Services (Related To Soil Excavation, Groundwater Management And Site Security) [Member] |  |  |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |
Percentage of the total remaining reserve | 37.00% |  | 37.00% |  |  |  |

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