Business Combinations - Schedule of Unpaid Balance and Fair Value of the Acquired Loan Portfolio (Details) - CIT Group Inc. $ in Millions	Jan. 03, 2022 USD ($)
Business Acquisition [Line Items]
Loans and Leases, UPB	$ 33,092
Loans and Leases, FV	32,714
Non-PCD
Business Acquisition [Line Items]
Loans and Leases, UPB	29,542
Loans and Leases, FV	29,481
PCD
Business Acquisition [Line Items]
Loans and Leases, UPB	3,550
Loans and Leases, FV	$ 3,233

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

Fair value of acquired receivable from business combination, excluding certain loans and debt securities acquired in transfer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472

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- Definition

For receivables acquired in a business combination, excluding certain loans and debt securities acquired in a transfer (as defined), this element represents the gross contractual amounts receivable, by major class of receivable, such as loans, direct finance leases (as defined), and any other class of receivables.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472

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