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Debt - Interest Expense and LT Debt Maturities (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Debt Instrument [Line Items] |  |  |
Total interest expense | $ 3,496 | $ 4,121 | $ 4,423
2022 | 33,796 |  |
2023 | 23,091 |  |
2024 | 13,401 |  |
2025 | 11,228 |  |
2026 | 6,138 |  |
Thereafter | 22,213 |  |
Total | 109,867 |  |
Automotive |  |  |
Debt Instrument [Line Items] |  |  |
Total interest expense | 950 | 1,098 | 782
2022 | 463 |  |
2023 | 2,814 |  |
2024 | 84 |  |
2025 | 2,570 |  |
2026 | 57 |  |
Thereafter | 11,342 |  |
Total | 17,330 |  |
Automotive Financing |  |  |
Debt Instrument [Line Items] |  |  |
Financing interest expense | 2,546 | $ 3,023 | $ 3,641
2022 | 33,333 |  |
2023 | 20,277 |  |
2024 | 13,317 |  |
2025 | 8,658 |  |
2026 | 6,081 |  |
Thereafter | 10,871 |  |
Total | $ 92,537 |  |

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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal after Year Five + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Five + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Four + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Three + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Two + References No definition available. + Details
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- Definition Long-term Debt and Finance Lease Obligations, Repayments of Principal in Next Twelve Months + References No definition available. + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
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