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Securitization Transactions (Collateralized Debt) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Debt Instrument [Line Items]
Collateralized debt	$ 1,101
Special Purpose Entities I [Member]
Debt Instrument [Line Items]
Collateralized debt	153
Special Purpose Entities II [Member]
Debt Instrument [Line Items]
Collateralized debt	191
Special Purpose Entities III [Member]
Debt Instrument [Line Items]
Collateralized debt	21
Special Purpose Entities IV [Member]
Debt Instrument [Line Items]
Collateralized debt	96
Special Purpose Entities V [Member]
Debt Instrument [Line Items]
Collateralized debt	216
Special Purpose Entities VI [Member]
Debt Instrument [Line Items]
Collateralized debt	2
Special Purpose Entities VII [Member]
Debt Instrument [Line Items]
Collateralized debt	4
Special Purpose Entities VIII [Member]
Debt Instrument [Line Items]
Collateralized debt	6
Special Purpose Entities IX [Member]
Debt Instrument [Line Items]
Collateralized debt	14
Special Purpose Entities X [Member]
Debt Instrument [Line Items]
Collateralized debt	19
Special Purpose Entities XI [Member]
Debt Instrument [Line Items]
Collateralized debt	18
Special Purpose Entities XII [Member]
Debt Instrument [Line Items]
Collateralized debt	15
Special Purpose Entities XIII [Member]
Debt Instrument [Line Items]
Collateralized debt	6
Special Purpose Entities XIV [Member]
Debt Instrument [Line Items]
Collateralized debt	$ 12
Basis spread on variable rate	2.00%
Special Purpose Entities XV [Member]
Debt Instrument [Line Items]
Collateralized debt	$ 18
Special Purpose Entities XVI [Member]
Debt Instrument [Line Items]
Collateralized debt	19
Special Purpose Entities XVII [Member]
Debt Instrument [Line Items]
Collateralized debt	148
Special Purpose Entities XVIII [Member]
Debt Instrument [Line Items]
Collateralized debt	$ 143
Maximum [Member] | Special Purpose Entities XIV [Member]
Debt Instrument [Line Items]
Effective interest rate	46.00%
Minimum [Member] | Special Purpose Entities XIV [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
CDI [Member] | Special Purpose Entities I [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%
CDI [Member] | Special Purpose Entities II [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
CDI [Member] | Special Purpose Entities III [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	3.50%
CDI [Member] | Special Purpose Entities IV [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
CDI [Member] | Special Purpose Entities V [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
BADLAR Rate [Member] | Special Purpose Entities VI [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities VII [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities VIII [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities IX [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities X [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities XI [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities XII [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities XIII [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities XV [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Special Purpose Entities XVI [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities VI [Member]
Debt Instrument [Line Items]
Effective interest rate	46.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities VII [Member]
Debt Instrument [Line Items]
Effective interest rate	46.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities VIII [Member]
Debt Instrument [Line Items]
Effective interest rate	46.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities IX [Member]
Debt Instrument [Line Items]
Effective interest rate	50.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities X [Member]
Debt Instrument [Line Items]
Effective interest rate	52.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities XI [Member]
Debt Instrument [Line Items]
Effective interest rate	62.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities XII [Member]
Debt Instrument [Line Items]
Effective interest rate	63.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities XIII [Member]
Debt Instrument [Line Items]
Effective interest rate	46.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities XV [Member]
Debt Instrument [Line Items]
Effective interest rate	48.00%
BADLAR Rate [Member] | Maximum [Member] | Special Purpose Entities XVI [Member]
Debt Instrument [Line Items]
Effective interest rate	56.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities VI [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities VII [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities VIII [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities IX [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities X [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities XI [Member]
Debt Instrument [Line Items]
Effective interest rate	35.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities XII [Member]
Debt Instrument [Line Items]
Effective interest rate	35.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities XIII [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities XV [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
BADLAR Rate [Member] | Minimum [Member] | Special Purpose Entities XVI [Member]
Debt Instrument [Line Items]
Effective interest rate	30.00%
Diario Oficial [Member] | Special Purpose Entities XVII [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
Diario Oficial [Member] | Special Purpose Entities XVIII [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%

X

- Definition

The value of the collateral (typically cash) that the entity receives in a financing transaction in exchange for securities lent. This item represents a liability in the financial statements of the lender of the securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 25
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=109249708&loc=d3e113275-111724

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X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

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-Publisher FASB
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- 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.

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