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Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-15

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Derivative Financial Instruments - Notional Amounts for Derivative Financial Instruments (Details) - GM Financial - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2023
Derivative [Line Items]
Notional	$ 162,605			$ 163,446
Fair Value of Assets	1,391			1,809
Fair Value of Liabilities	1,842			2,563
Collateral	225			457
Collateral available for netting	819			1,200
Interest rate swaps \| Fair Value Hedges \| Fair Value Level 2 \| Designated as Hedges
Derivative [Line Items]
Notional	33,190			18,379
Fair Value of Assets	207			75
Fair Value of Liabilities	278			238
Interest rate swaps \| Cash Flow Hedges \| Fair Value Level 2 \| Designated as Hedges
Derivative [Line Items]
Notional	1,881			2,381
Fair Value of Assets	17			17
Fair Value of Liabilities	10			16
Foreign currency swaps \| Cash Flow Hedges \| Fair Value Level 2 \| Designated as Hedges
Derivative [Line Items]
Notional	8,993			8,003
Fair Value of Assets	284			144
Fair Value of Liabilities	218			311
Interest rate contracts \| Fair Value Level 2 \| Not Designated as Hedges
Derivative [Line Items]
Notional	118,346			134,683
Fair Value of Assets	883			1,573
Fair Value of Liabilities	1,334			1,997
Foreign currency \| Fair Value Level 2 \| Not Designated as Hedges
Derivative [Line Items]
Notional	195			0
Fair Value of Assets	0			0
Fair Value of Liabilities	3			$ 0
Foreign currency \| Cash Flow Hedges
Derivative [Line Items]
Gain (loss) recognized in AOCI	246	$ (154)
Gain (loss) on AOCI reclassification	$ 291	$ (226)	$ (129)