Derivative Financial Instruments and Hedging Activities - Recognized in the Balance Sheet (Details) - Derivatives Designated as Hedges - Fair value hedges - Unsecured Debt - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Carrying Amount of Hedged Items	$ 24,964	$ 23,315
Cumulative Amount of Fair Value Hedging Adjustments	(226)	(739)
Discontinued hedge cumulative amount of fair value hedging adjustments	$ 246	$ 200

Derivative Liability, Fair Value Hedging Adjustment Increase (Decrease)

No definition available.

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- Definition

Derivative Liability, Fair Value Hedging Adjustment Increase (Decrease), Discontinuation of Hedge Accounting

+ References

No definition available.

+ Details

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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.

+ References

No definition available.

+ Details

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- Definition

Amount of liability hedged in fair value hedging relationship.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959

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