Additional Lower of Amortized Cost or Fair Value Adjustment

No definition available.

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- Definition

Carrying Amount At Period End of Residential Mortgage Loans Serviced By Affiliates

+ References

No definition available.

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- Definition

Loans Held for Sale, Sold

+ References

No definition available.

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- Definition

Loans Held for Sale, Sold, Aggregate Carrying Value

+ References

No definition available.

+ Details

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- Definition

Recorded a lower of amortized cost or fair value adjustment.

+ References

No definition available.

+ Details

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- Definition

Transfer of Portfolio Loans and Leases to Held-for-Sale, Unpaid Principal

+ 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.

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- Definition

The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.3(a))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13(h))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Definition

The face amount of loans that will be sold to other entities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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- Definition

Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 230
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-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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- Details

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Loans Held for Sale - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			12 Months Ended
	Mar. 31, 2017	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	$ 806	$ 806			$ 1,809
Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	637	637			844
Valuation allowance	58	58			55
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	169	169			965
Valuation allowance	10	10			57
Commercial Loans - Fair Value Option [Member] \| Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	507	507			725
Commercial Loans - Transferred to Held for Sale [Member] \| Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	130	130			102
Global Banking [Member] \| Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	632	632			827
Real Estate, Including Construction [Member] \| Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	0	0			17
Residential Mortgage [Member] \| Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	99	99			890
Transfer of loans to held for sale, unpaid principal balance					568
Transfer of loans to held for sale, net					473
Loans held for sale, sold, unpaid principal balance	364
Loans held for sale, sold, at aggregate carrying value	276
Gain (loss) on sale of loans held for sale	(2)
Residential Mortgage And Home Equity Mortgage [Member] \| Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans to held for sale, unpaid principal balance			$ 648
Transfer of loans to held for sale, net			$ 628
Loans held for sale, sold, unpaid principal balance		471
Loans held for sale, sold, at aggregate carrying value		445
Gain (loss) on sale of loans held for sale		43
Subprime [Member] \| Residential Mortgage [Member] \| Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans held for sale	2	2			3
Other Income [Member] \| Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lower of amortized cost or fair value adjustment attributed to non-credit factors		1		$ 26
Other Income [Member] \| Residential Mortgage [Member] \| Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Lower of amortized cost or fair value adjustment attributed to non-credit factors				$ 33
Additional lower of amortized cost or fair value adjustment		(5)
Other Income [Member] \| Residential Mortgage And Home Equity Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Additional lower of amortized cost or fair value adjustment		1
HSBC Finance Corporation [Member] \| Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount of residential mortgage loans					$ 558
HSBC Finance Corporation [Member] \| Residential Mortgage And Home Equity Mortgage [Member] \| Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying amount of residential mortgage loans	$ 93	$ 93