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v3.21.1

Debt - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended
--- | --- | ---
Apr. 30, 2021 | Mar. 31, 2021
Unsecured Debt | Line of Credit | Subsequent Event |  |
Debt Instrument [Line Items] |  |
Aggregate borrowing capacity | $ 11,200,000,000 |
Unsecured Debt | Line of Credit | Five Year Revolving Credit Facility Due 2023 |  |
Debt Instrument [Line Items] |  |
Debt term |  | 5 years
Aggregate borrowing capacity |  | $ 10,500,000,000
Unsecured Debt | Line of Credit | Five Year Revolving Credit Facility Due 2023 | Subsequent Event |  |
Debt Instrument [Line Items] |  |
Debt term | 5 years |
Unsecured Debt | Line of Credit | Five Year Revolving Credit Facility Due 2026 | Subsequent Event |  |
Debt Instrument [Line Items] |  |
Debt term | 5 years |
Aggregate borrowing capacity | $ 9,900,000,000 |
Line of credit extension period | 3 years |
Unsecured Debt | Line of Credit | Three Year Revolving Credit Facility April 2024 | Subsequent Event |  |
Debt Instrument [Line Items] |  |
Debt term | 3 years |
Aggregate borrowing capacity | $ 4,300,000,000 |
Unsecured Debt | Line of Credit | Three Year Revolving Credit Facility April 2021 |  |
Debt Instrument [Line Items] |  |
Debt term |  | 3 years
Aggregate borrowing capacity |  | $ 4,000,000,000.0
GM Financial | Line of Credit |  |
Debt Instrument [Line Items] |  |
Aggregate borrowing capacity |  | $ 6,000,000,000.0
GM Financial | Senior Notes | Subsequent Event |  |
Debt Instrument [Line Items] |  |
Principal amount | $ 2,300,000,000 |
Weighted average interest rate (percent) | 1.60% |
GM Financial | Unsecured Debt | Line of Credit | $2.0 Billion Dollar Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Debt term |  | 364 days
Aggregate borrowing capacity |  | $ 2,000,000,000.0
GM Financial | Unsecured Debt | Line of Credit | $2.0 Billion Dollar Revolving Credit Facility | Subsequent Event |  |
Debt Instrument [Line Items] |  |
Debt term | 364 days |
Aggregate borrowing capacity | $ 2,000,000,000.0 |
GM Financial | Unsecured Debt | Senior Notes |  |
Debt Instrument [Line Items] |  |
Principal amount |  | $ 3,800,000,000
Weighted average interest rate (percent) |  | 1.44%
GM Financial | Secured Debt | Notes Payable, Other Payables | Securitization notes payable |  |
Debt Instrument [Line Items] |  |
Principal amount |  | $ 8,200,000,000
Weighted average interest rate (percent) |  | 0.82%

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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