XML 72 R84.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Debt - Interest Expense and LT Debt Maturities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Debt Instrument [Line Items] |  |  |
Total interest expense | $ 4,423 | $ 3,880 | $ 3,141
2020 | 37,499 |  |
2021 | 21,225 |  |
2022 | 11,833 |  |
2023 | 8,584 |  |
2024 | 5,843 |  |
Thereafter | 18,967 |  |
Total | 103,951 |  |
Automotive |  |  |
Debt Instrument [Line Items] |  |  |
Total interest expense | 782 | 655 | 575
2020 | 1,912 |  |
2021 | 535 |  |
2022 | 70 |  |
2023 | 1,546 |  |
2024 | 48 |  |
Thereafter | 10,807 |  |
Total | 14,918 |  |
Finance lease obligations | 14,386 | 13,963 |
GM Financial |  |  |
Debt Instrument [Line Items] |  |  |
Financing interest expense | 3,641 | 3,225 | $ 2,566
2020 | 35,587 |  |
2021 | 20,690 |  |
2022 | 11,763 |  |
2023 | 7,038 |  |
2024 | 5,795 |  |
Thereafter | 8,160 |  |
Total | 89,033 |  |
Finance lease obligations | $ 88,938 | $ 90,988 |

X
- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal after Year Five + References No definition available. + Details
Name: | gm_LongtermDebtandFinanceLeaseObligationsMaturitiesRepaymentsofPrincipalafterYearFive
Namespace Prefix: | gm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Five + References No definition available. + Details
Name: | gm_LongtermDebtandFinanceLeaseObligationsMaturitiesRepaymentsofPrincipalinYearFive
Namespace Prefix: | gm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Four + References No definition available. + Details
Name: | gm_LongtermDebtandFinanceLeaseObligationsMaturitiesRepaymentsofPrincipalinYearFour
Namespace Prefix: | gm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Three + References No definition available. + Details
Name: | gm_LongtermDebtandFinanceLeaseObligationsMaturitiesRepaymentsofPrincipalinYearThree
Namespace Prefix: | gm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long-term Debt and Finance Lease Obligations, Maturities, Repayments of Principal in Year Two + References No definition available. + Details
Name: | gm_LongtermDebtandFinanceLeaseObligationsMaturitiesRepaymentsofPrincipalinYearTwo
Namespace Prefix: | gm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Long-term Debt and Finance Lease Obligations, Repayments of Principal in Next Twelve Months + References No definition available. + Details
Name: | gm_LongtermDebtandFinanceLeaseObligationsRepaymentsofPrincipalinNextTwelveMonths
Namespace Prefix: | gm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of short-term and long-term debt and lease obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 This element represents interest incurred for borrowed money which was used to produce goods or render services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_FinancingInterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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=114775744&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=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 (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=116634182&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=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of long-term debt and lease obligation, including portion classified as current. + References No definition available. + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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: |