Commitments and Contingencies (Unaudited) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	$ 584	$ 572
Loss Contingency, Range of Possible Loss, Portion Not Accrued	357	363
Recorded Third-Party Environmental Recoveries, Amount	503	$ 486
Financial Arrangements
Standby Unused Letters Of Credit and bank guarantees	393
Surety Bond Outstanding	$ 78
Line of Credit Facility [Line Items]
Debt Instrument, Covenant Compliance	the company was in compliance with all covenants under its credit agreements.
Line of Credit Facility [Table]
Line of Credit Facility, Covenant Terms, Maximum Debt to Capitalization Ratio	The company also cannot permit the ratio of its debt to capitalization (as set forth in the credit agreement) to exceed 65 percent.
2022 Five Year Term
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,500
Line of Credit Outstanding	0
2018 Five Year Term
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,000
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Commercial Paper, Maximum Borrowing Capacity	2,000
Commercial Paper	0
Other Current Liabilities [Member]
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	200
Other Noncurrent Liabilities [Member]
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	384
Other Current Assets [Member]
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Amount	178
Other Noncurrent Assets [Member]
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Amount	$ 325