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Derivative Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2021
Derivative [Line Items] |
Schedule of Cumulative Basis Adjustments for Fair Value Hedges | The following amounts were recorded in the condensed consolidated balance sheets related to items designated and qualifying as hedged items in fair value hedging relationships:
| March 31, 2021 |  | December 31, 2020
| Carrying Amount of Hedged Items |  | Cumulative Amount of Fair Value Hedging Adjustments(a) |  | Carrying Amount of Hedged Items |  | Cumulative Amount of Fair Value Hedging Adjustments(a)
Short-term unsecured debt | $ | 4,365 |  |  | $ | (54) |  |  | $ | 4,858 |  |  | $ | (69) |
Long-term unsecured debt | 19,266 |  |  | (257) |  |  | 18,457 |  |  | (670) |
GM Financial unsecured debt | $ | 23,631 |  |  | $ | (311) |  |  | $ | 23,315 |  |  | $ | (739) |
__________ (a)Includes $201 million and $200 million of unamortized gains remaining on hedged items for which hedge accounting has been discontinued at March 31, 2021 and December 31, 2020.
Automotive |
Derivative [Line Items] |
Schedule of Notional Amounts for Derivative Financial Instruments | The following table presents the notional amounts of derivative financial instruments in our automotive operations:
| Fair Value Level |  | March 31, 2021 |  | December 31, 2020
Derivatives not designated as hedges(a) |  |  |  |  |
Foreign currency | 2 |  | $ | 1,963 |  |  | $ | 2,195 |
Commodity | 2 |  | 631 |  |  | 341 |
Stellantis warrants, formerly known as PSA warrants(b) | 2 |  | 47 |  |  | 49 |
Total derivative financial instruments |  |  | $ | 2,641 |  |  | $ | 2,585 |
__________ (a)The fair value of these derivative instruments at March 31, 2021 and December 31, 2020 and the gains/losses included in our condensed consolidated income statements for the three months ended March 31, 2021 and 2020 were insignificant, unless otherwise noted. (b)As a result of the merger of Peugeot, S.A. (PSA Group) and Fiat Chrysler Automobiles N.V. on January 16, 2021, our 39.7 million warrants in Stellantis N.V. (Stellantis) will convert into 69.2 million common shares of Stellantis upon exercise. These warrants will continue to be governed by the same terms and conditions that were applicable prior to the merger. The fair value of these warrants, located in Other assets, was $1.3 billion and $1.1 billion at March 31, 2021 and December 31, 2020. We recorded a gain of $210 million and loss of $417 million in Interest income and other non-operating income, net in the three months ended March 31, 2021 and 2020.
GM Financial |
Derivative [Line Items] |
Schedule of Notional Amounts for Derivative Financial Instruments | The following table presents the gross fair value amounts of GM Financial's derivative financial instruments and the associated notional amounts:
| Fair Value Level |  | March 31, 2021 |  | December 31, 2020
|  |  | Notional |  | Fair Value of Assets |  | Fair Value of Liabilities |  | Notional |  | Fair Value of Assets |  | Fair Value of Liabilities
Derivatives designated as hedges(a) |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value hedges |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | 2 |  | $ | 14,309 |  |  | $ | 251 |  |  | $ | 171 |  |  | $ | 10,064 |  |  | $ | 463 |  |  | $ | 13 |
Foreign currency swaps | 2 |  | 1,881 |  |  | 81 |  |  | 37 |  |  | 1,958 |  |  | 128 |  |  | 9 |
Cash flow hedges |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate swaps | 2 |  | 878 |  |  | 2 |  |  | 18 |  |  | 921 |  |  | — |  |  | 27 |
Foreign currency swaps | 2 |  | 6,343 |  |  | 201 |  |  | 98 |  |  | 5,626 |  |  | 278 |  |  | 47 |
Derivatives not designated as hedges(a) |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts | 2 |  | 110,961 |  |  | 839 |  |  | 453 |  |  | 110,997 |  |  | 954 |  |  | 576 |
Total derivative financial instruments(b) |  |  | $ | 134,372 |  |  | $ | 1,374 |  |  | $ | 777 |  |  | $ | 129,566 |  |  | $ | 1,823 |  |  | $ | 672 |
__________ (a)The gains/losses included in our condensed consolidated income statements and statements of comprehensive income for the three months ended March 31, 2021 and 2020 were insignificant, unless otherwise noted. Amounts accrued for interest payments in a net receivable position are included in Other assets. Amounts accrued for interest payments in a net payable position are included in Other liabilities. (b)GM Financial held $450 million and $728 million of collateral from counterparties available for netting against GM Financial's asset positions, and posted an insignificant amount of collateral to counterparties available for netting against GM Financial's liability positions at March 31, 2021 and December 31, 2020.

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- Definition Tabular disclosure for fair value hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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