XML 55 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1

Automotive and GM Financial Debt (Tables)

6 Months Ended

Jun. 30, 2018

Automotive [Member]

Debt Instrument [Line Items]

Debt carrying amount and fair value

	June 30, 2018								December 31, 2017
	Carrying Amount				Fair Value				Carrying Amount				Fair Value
Total automotive debt	$	13,819			$	14,362			$	13,502			$	15,088
Fair value utilizing Level 1 inputs					$	12,042							$	13,202
Fair value utilizing Level 2 inputs					$	2,320							$	1,886

GM Financial [Member]

Debt Instrument [Line Items]

Debt carrying amount and fair value

	June 30, 2018								December 31, 2017
	Carrying Amount				Fair Value				Carrying Amount				Fair Value
Secured debt	$	39,083			$	39,024			$	39,887			$	39,948
Unsecured debt	45,357				45,845				40,830				41,989
Total GM Financial debt	$	84,440			$	84,869			$	80,717			$	81,937
Fair value utilizing Level 2 inputs					$	82,604							$	79,623
Fair value utilizing Level 3 inputs					$	2,265							$	2,314

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: