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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

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-Publisher FASB
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- Definition

The balance of financing receivables that were individually evaluated for impairment.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
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-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount, before allowance for credit loss, of financing receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
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No definition available.

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Loans and Allowance for Loan Losses - Allowance for Loan Losses and Related Loan Balances by Portfolio Segment (Details) - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Loan losses allowance
Individually evaluated for impairment			$ 55
Collectively evaluated for impairment			483
Total allowance for loan losses	$ 1,452	$ 1,152	538	$ 562	$ 516	$ 474
Loans held for investment:
Individually evaluated for impairment			682
Collectively evaluated for impairment			87,531
Loans held for investment	86,535		88,213
Commercial
Loan losses allowance
Total allowance for loan losses	932	679	354	407	389	359
Loans held for investment:
Loans held for investment	48,886		45,745
Consumer
Loan losses allowance
Total allowance for loan losses	520	473	184	155	122	110
Loans held for investment:
Loans held for investment	37,649		42,468
Unallocated
Loan losses allowance
Total allowance for loan losses	$ 0	$ 0		$ 0	$ 5	$ 5
Unallocated
Loan losses allowance
Individually evaluated for impairment			0
Collectively evaluated for impairment			0
Total allowance for loan losses			0
Loans held for investment:
Individually evaluated for impairment			0
Collectively evaluated for impairment			0
Loans held for investment			0
Unallocated \| Unallocated
Loan losses allowance
Total allowance for loan losses			0
Commercial Loans
Loan losses allowance
Individually evaluated for impairment			43
Collectively evaluated for impairment			311
Loans held for investment:
Individually evaluated for impairment			436
Collectively evaluated for impairment			45,309
Commercial Loans \| Commercial
Loan losses allowance
Total allowance for loan losses			354
Consumer Loans
Loan losses allowance
Individually evaluated for impairment			12
Collectively evaluated for impairment			172
Loans held for investment:
Individually evaluated for impairment			246
Collectively evaluated for impairment			42,222
Consumer Loans \| Consumer
Loan losses allowance
Total allowance for loan losses			$ 184