Other Assets (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Components of Other Assets [Line Items]
Corporate/bank-owned life insurance	$ 19,912	$ 19,751
Accounts receivable (1)	26,213	34,281
Interest receivable	6,177	6,084
Net carrying value	1,886	1,988
Other	124	134
Operating lease ROU assets (lessee)	4,776	0
Due from customers on acceptances	272	258
Other	9,489	9,444
Other assets	76,358	79,850
Operating lease assets [Member]
Components of Other Assets [Line Items]
Other	8,663	9,036
Not government insured/guaranteed [Member]
Components of Other Assets [Line Items]
Residential real estate	185	229
Government insured/guaranteed [Member]
Components of Other Assets [Line Items]
Residential real estate	68	88
Customer relationship and other amortized intangibles [Member]
Components of Other Assets [Line Items]
Net carrying value	$ 479	$ 545

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Amount of lessee's right to use underlying asset under operating lease.

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Carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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