XML 55 R61.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Revenue - Disaggregation (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | $ 122,697 | $ 133,045 |
Leased vehicle income |  |  |  |  |  |  |  |  | 10,032 | 9,963 |
Finance charge income |  |  |  |  |  |  |  |  | 4,064 | 3,621 |
Other income |  |  |  |  |  |  |  |  | 444 | 420 |
GM Financial net sales and revenue |  |  |  |  |  |  |  |  | 14,540 | 14,004 |
Total net sales and revenue | $ 30,826 | $ 35,473 | $ 36,060 | $ 34,878 | $ 38,399 | $ 35,791 | $ 36,760 | $ 36,099 | 137,237 | 147,049 | $ 145,588
Operating Segments | Cruise |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 100 |  |
Total net sales and revenue |  |  |  |  |  |  |  |  | 100 | 0 | 0
Operating Segments | GM Financial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Leased vehicle income |  |  |  |  |  |  |  |  | 10,032 | 9,963 |
Finance charge income |  |  |  |  |  |  |  |  | 4,071 | 3,629 |
Other income |  |  |  |  |  |  |  |  | 451 | 424 |
GM Financial net sales and revenue |  |  |  |  |  |  |  |  | 14,554 | 14,016 |
Total net sales and revenue |  |  |  |  |  |  |  |  | 14,554 | 14,016 | 12,151
Eliminations/ Reclassifications |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | (100) | (98) |
Leased vehicle income |  |  |  |  |  |  |  |  | 0 | 0 |
Finance charge income |  |  |  |  |  |  |  |  | (7) | (8) |
Other income |  |  |  |  |  |  |  |  | (7) | (4) |
GM Financial net sales and revenue |  |  |  |  |  |  |  |  | (14) | (12) |
Total net sales and revenue |  |  |  |  |  |  |  |  | (114) | (110) | (170)
Automotive |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 122,697 | 133,045 | 133,449
Automotive | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 122,697 | 133,143 |
Total net sales and revenue |  |  |  |  |  |  |  |  | 122,697 | 133,143 | 133,607
Automotive | Operating Segments | GMNA |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 106,366 | 113,792 |
Total net sales and revenue |  |  |  |  |  |  |  |  | 106,366 | 113,792 | 111,345
Automotive | Operating Segments | GMI |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 16,111 | 19,148 |
Total net sales and revenue |  |  |  |  |  |  |  |  | 16,111 | 19,148 | 21,920
Automotive | Corporate |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 220 | 203 |
Total net sales and revenue |  |  |  |  |  |  |  |  | 220 | 203 | $ 342
Vehicle, parts and accessories |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 116,277 | 125,155 |
Vehicle, parts and accessories | Eliminations/ Reclassifications |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 0 | (62) |
Vehicle, parts and accessories | Automotive | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 116,277 | 125,217 |
Vehicle, parts and accessories | Automotive | Operating Segments | GMNA |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 101,346 | 107,217 |
Vehicle, parts and accessories | Automotive | Operating Segments | GMI |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 14,931 | 17,980 |
Vehicle, parts and accessories | Automotive | Corporate |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 0 | 20 |
Used vehicles |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 2,019 | 3,354 |
Used vehicles | Eliminations/ Reclassifications |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 0 | (36) |
Used vehicles | Automotive | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 2,019 | 3,390 |
Used vehicles | Automotive | Operating Segments | GMNA |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 1,896 | 3,215 |
Used vehicles | Automotive | Operating Segments | GMI |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 123 | 175 |
Used vehicles | Automotive | Corporate |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 0 | 0 |
Services and other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 4,401 | 4,536 |
Services and other | Operating Segments | Cruise |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 100 |  |
Services and other | Eliminations/ Reclassifications |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | (100) | 0 |
Services and other | Automotive | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 4,401 | 4,536 |
Services and other | Automotive | Operating Segments | GMNA |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 3,124 | 3,360 |
Services and other | Automotive | Operating Segments | GMI |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | 1,057 | 993 |
Services and other | Automotive | Corporate |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Automotive net sales and revenue |  |  |  |  |  |  |  |  | $ 220 | $ 183 |

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_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest and fee income generated from consumer loans. Consumer loans are loans to individuals for household, family, and other personal expenditures. Such loans include residential mortgages, home equity lines-of-credit, automobiles and marine transport loans, credit card transactions, and others. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestAndFeeIncomeLoansConsumer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919372-209981 + Details
Name: | us-gaap_LeaseIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue and income classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 + Details
Name: | us-gaap_OtherIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue that is not accounted for under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_RevenueNotFromContractWithCustomer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&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 (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=gm_CruiseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=gm_GMFinancialSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=gm_GmnaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=gm_GMIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=gm_VehiclesandPartsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=gm_UsedVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=gm_ServicesandOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |