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Long-Term Debt and Short-Term Borrowings - Short-Term Borrowings and Current Portion of Long-Term Debt (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Short-Term Borrowings and Current Portion of Long-Term Debt |  |
Current portion of long-term debt | $ 1,291 | $ 794
Total short-term borrowings and current portion of long-term debt | $ 1,307 | 806
Current portion of long-term debt |  |
Short-Term Borrowings and Current Portion of Long-Term Debt |  |
Effective Interest Rate | 1.20% |
U.S. dollar commercial paper |  |
Short-Term Borrowings and Current Portion of Long-Term Debt |  |
Effective Interest Rate | 0.00% |
Short-term borrowings | $ 0 | 0
Other borrowings |  |
Short-Term Borrowings and Current Portion of Long-Term Debt |  |
Effective Interest Rate | 4.10% |
Short-term borrowings | $ 16 | $ 12

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