Commitments and Contingencies (Unaudited) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Environmental Matters
Accrual for Environmental Remediation Costs	$ 567	$ 546
Loss Contingency, Range of Possible Loss, Portion Not Accrued	387	377
Recorded Third-Party Environmental Recoveries, Amount	522	507
Financial Arrangements
Standby Unused Letters Of Credit and bank guarantees	598
Surety Bond Outstanding	$ 269
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, 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.
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	$ 567	546
Loss Contingency, Range of Possible Loss, Portion Not Accrued	387	377
Recorded Third-Party Environmental Recoveries, Amount	522	$ 507
2022 Five Year Term
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,500
2025 Five Year Term
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	3,000
Line of Credit Outstanding	0
Other Current Liabilities [Member]
Environmental Matters
Accrual for Environmental Remediation Costs	198
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	198
Other Noncurrent Liabilities [Member]
Environmental Matters
Accrual for Environmental Remediation Costs	369
Site Contingency [Line Items]
Accrual for Environmental Remediation Costs	369
Other Current Assets [Member]
Environmental Matters
Recorded Third-Party Environmental Recoveries, Amount	184
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Amount	184
Other Noncurrent Assets [Member]
Environmental Matters
Recorded Third-Party Environmental Recoveries, Amount	338
Site Contingency [Line Items]
Recorded Third-Party Environmental Recoveries, Amount	338
Commercial Paper [Member]
Line of Credit Facility [Line Items]
Commercial Paper, Maximum Borrowing Capacity (Prior)	2,500
Commercial Paper, Maximum Borrowing Capacity (New)	3,000
Commercial Paper, at Carrying Value	$ 0