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.

No definition available.

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- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=118939409&loc=d3e18845-111554

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Loans and ACL - Types of Modifications and Impact to Allowance (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Newly Designated TDRs \| Commercial \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	$ 0	$ 0	$ 2	$ 0
Newly Designated TDRs \| Commercial \| CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	0	0	0	0
Newly Designated TDRs \| Retail \| Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	3	3	10	12
Newly Designated TDRs \| Retail \| Direct
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	0	0	0	0
Newly Designated TDRs \| Retail \| Indirect
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	7	6	19	16
Newly Designated TDRs \| Revolving credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	1	1	3	3
Newly Designated TDRs \| Rate \| Commercial \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	2	39	52	69
Newly Designated TDRs \| Rate \| Commercial \| CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	0	0	1	27
Newly Designated TDRs \| Rate \| Retail \| Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	51	53	173	193
Newly Designated TDRs \| Rate \| Retail \| Direct
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	2	2	7	6
Newly Designated TDRs \| Rate \| Retail \| Indirect
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	61	52	159	139
Newly Designated TDRs \| Rate \| Revolving credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	6	4	17	13
Newly Designated TDRs \| Structure \| Commercial \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	5	3	11	46
Newly Designated TDRs \| Structure \| Commercial \| CRE
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	0	1	1	3
Newly Designated TDRs \| Structure \| Retail \| Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	7	7	21	22
Newly Designated TDRs \| Structure \| Retail \| Direct
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	1	1	3	2
Newly Designated TDRs \| Structure \| Retail \| Indirect
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	1	1	3	3
Newly Designated TDRs \| Structure \| Revolving credit
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	0	0	0	0
Re-Modification of Previously Designated TDRs
Financing Receivable, Troubled Debt Restructuring [Line Items]
ALLL Impact	0	0	0	0
Re-Modification of Previously Designated TDRs \| Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	12	13	49	65
Re-Modification of Previously Designated TDRs \| Structure
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDRs	$ 2	$ 1	$ 18	$ 11