Divestiture	3 Months Ended
Mar. 31, 2024
Business Combinations [Abstract]
Divestiture	2. Divestiture On April 29, 2023, the Company sold its CIT business to a private equity firm. The transaction resulted in a pre-tax gain of $225 million ($157 million after-tax effect) that has been included in “other revenues from operations” in the Consolidated Statement of Income in the second quarter of 2023. Prior to the sale, the CIT business contributed $45 million to trust income in the three months ended March 31, 2023. After considering expenses, the results of operations from the CIT business were not material to the Company's consolidated results of operations in that period.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479907/805-20-50-5

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 805
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//805/tableOfContent

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