XML 41 R30.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Automotive and GM Financial Debt (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2016
Automotive [Member] |
Debt Instrument [Line Items] |
Debt carrying amount and fair value [Table Text Block] |
| June 30, 2016 |  | December 31, 2015
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Total automotive debt | $ | 10,820 |  |  | $ | 11,934 |  |  | $ | 8,765 |  |  | $ | 9,088 |
Fair value utilizing Level 1 inputs |  |  | $ | 9,701 |  |  |  |  | $ | 6,972 |
Fair value utilizing Level 2 inputs |  |  | $ | 2,233 |  |  |  |  | $ | 2,116 |
GM Financial [Member] |
Debt Instrument [Line Items] |
Debt carrying amount and fair value [Table Text Block] |
| June 30, 2016 |  | December 31, 2015
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Secured debt | $ | 34,338 |  |  | $ | 34,530 |  |  | $ | 30,689 |  |  | $ | 30,671 |
Unsecured debt | 30,162 |  |  | 30,819 |  |  | 23,657 |  |  | 23,726 |
Total GM Financial debt | $ | 64,500 |  |  | $ | 65,349 |  |  | $ | 54,346 |  |  | $ | 54,397 |
Fair value utilizing Level 2 inputs |  |  | $ | 60,953 |  |  |  |  | $ | 48,716 |
Fair value utilizing Level 3 inputs |  |  | $ | 4,396 |  |  |  |  | $ | 5,681 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCarryingValuesAndEstimatedFairValuesOfDebtInstrumentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | gm_BusinessGroupAxis=gm_AutomotiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | gm_BusinessGroupAxis=gm_GmFinancialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |