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Variable Interest Entities and Securitizations - Carrying Amount of Assets and Liabilities of Variable Interest Entities (Detail) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | $ 5,410 | $ 5,413
Carrying Amount of Assets | 396,878 | 390,365
Carrying Amount of Liabilities | 340,048 | 332,354
Affordable housing entities |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 4,594 | 4,559
VIE, nonconsolidated, carrying amount of assets included in certain investment structures | 2,300 | 2,300
VIE, nonconsolidated, carrying amount of liabilities included in certain investment structures | 701 | 741
Entities that provide capital to low-income and rural communities |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Other |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 486 | 502
Total other VIEs |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 5,080 | 5,061
Credit card loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Auto loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 0 | 0
Home loan |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 330 | 352
Total securitization-related VIEs |  |
Variable Interest Entity [Line Items] |  |
Maximum Exposure to Loss | 330 | 352
Consolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 32,835 | 35,519
Carrying Amount of Liabilities | 17,236 | 18,201
Consolidated | Affordable housing entities |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 246 | 236
Carrying Amount of Liabilities | 18 | 7
Consolidated | Entities that provide capital to low-income and rural communities |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 1,967 | 1,889
Carrying Amount of Liabilities | 69 | 69
Consolidated | Other |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Consolidated | Total other VIEs |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 2,213 | 2,125
Carrying Amount of Liabilities | 87 | 76
Consolidated | Credit card loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 27,271 | 31,112
Carrying Amount of Liabilities | 14,180 | 16,113
Consolidated | Auto loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 3,351 | 2,282
Carrying Amount of Liabilities | 2,969 | 2,012
Consolidated | Home loan |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Consolidated | Total securitization-related VIEs |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 30,622 | 33,394
Carrying Amount of Liabilities | 17,149 | 18,125
Unconsolidated |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 5,139 | 5,127
Carrying Amount of Liabilities | 1,275 | 1,289
Unconsolidated | Affordable housing entities |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 4,594 | 4,559
Carrying Amount of Liabilities | 1,275 | 1,289
Unconsolidated | Entities that provide capital to low-income and rural communities |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Unconsolidated | Other |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 486 | 502
Carrying Amount of Liabilities | 0 | 0
Unconsolidated | Total other VIEs |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 5,080 | 5,061
Carrying Amount of Liabilities | 1,275 | 1,289
Unconsolidated | Credit card loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Unconsolidated | Auto loan securitizations |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 0 | 0
Carrying Amount of Liabilities | 0 | 0
Unconsolidated | Home loan |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 59 | 66
Carrying Amount of Liabilities | 0 | 0
Unconsolidated | Total securitization-related VIEs |  |
Variable Interest Entity [Line Items] |  |
Carrying Amount of Assets | 59 | 66
Carrying Amount of Liabilities | $ 0 | $ 0

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- Definition In certain investment structures, we consolidate a VIE which in turn holds as its primary asset an investment in an unconsolidated VIE. This concept represents the carrying amount of assets related to these investment structures. + References No definition available. + Details
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- Definition In certain investment structures, we consolidate a VIE which in turn holds as its primary asset an investment in an unconsolidated VIE. This concept represents the carrying amount of liabilities related to these investment structures. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118582676&loc=d3e5747-111685 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=118582676&loc=d3e5728-111685 + Details
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