Commitments and Contingencies (Details 1) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Environmental Commitments and Contingencies (Amounts in Paragraphs)
Amounts accrued for probable environmental remediation costs	$ 572	$ 614
Loss Contingency, Range of Possible Loss, Portion Not Accrued	363	346
Recorded Third-Party Environmental Recoveries, Amount	486	$ 529
Financial Arrangements (Amounts in Paragraph)
Unused standby letters of credit and bank guarantees	434
Surety Bond Outstanding	71
Other Current Liabilities [Member]
Environmental Commitments and Contingencies (Amounts in Paragraphs)
Amounts accrued for probable environmental remediation costs	208
Other Noncurrent Liabilities [Member]
Environmental Commitments and Contingencies (Amounts in Paragraphs)
Amounts accrued for probable environmental remediation costs	364
Prepaid Expenses and Other Current Assets [Member]
Environmental Commitments and Contingencies (Amounts in Paragraphs)
Recorded Third-Party Environmental Recoveries, Amount	182
Other Noncurrent Assets [Member]
Environmental Commitments and Contingencies (Amounts in Paragraphs)
Recorded Third-Party Environmental Recoveries, Amount	$ 304