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Commitments and Contingent Liabilities (Additional Information) (Details) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2011 Location	Jun. 30, 2009 Location
Commitments and Contingencies Disclosure [Line Items]
Reserves for environmental contingencies	$ 301				$ 301		$ 300
Reserves for environmental contingencies classified as current liabilities	96				96		99
Environmental remediation charge	5			$ 6	36	$ 21
Payments for Environmental Liabilities	17			15	34	52
Environmental remediation charges	0	$ 10	$ 16	$ 0	26	$ 12
Outstanding letters of credit	174				174
Guarantees	4				4
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	94				94		102
Legacy Glass and Chemical Sites [Member]
Commitments and Contingencies Disclosure [Line Items]
Reserves for environmental contingencies	111				111		106
Other Environmental Contingencies [Member]
Commitments and Contingencies Disclosure [Line Items]
Reserves for environmental contingencies	$ 96				$ 96		$ 92
Judicial Consent Order [Member]
Commitments and Contingencies Disclosure [Line Items]
Total number of sites to be remediated | Location								20	19
Excavation of Soil [Member]
Commitments and Contingencies Disclosure [Line Items]
Percentage of the total remaining reserve	14.00%				14.00%
Soil Treatment, Transportation And Disposal Of Excavated Soil [Member]
Commitments and Contingencies Disclosure [Line Items]
Percentage of the total remaining reserve	6.00%				6.00%
Construction Services (Related To Soil Excavation, Groundwater Management And Site Security) [Member]
Commitments and Contingencies Disclosure [Line Items]
Percentage of the total remaining reserve	34.00%				34.00%

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