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Premises and Equipment - Schedule of Premises and Equipment (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Total | $ 3,272 | $ 2,650
Less accumulated depreciation and amortization | 1,395 | 1,194
Premises and equipment, net | 1,877 | 1,456
Land |  |
Property, Plant and Equipment [Line Items] |  |
Total | 403 | 352
Premises and leasehold improvements |  |
Property, Plant and Equipment [Line Items] |  |
Total | $ 1,609 | 1,458
Premises and leasehold improvements | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Useful Life (years) | 3 years |
Premises and leasehold improvements | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Useful Life (years) | 30 years |
Furniture, equipment and software |  |
Property, Plant and Equipment [Line Items] |  |
Total | $ 1,260 | $ 840
Furniture, equipment and software | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Useful Life (years) | 3 years |
Furniture, equipment and software | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Useful Life (years) | 15 years |

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- Definition Amount, excluding lessor's underlying asset for which right to use has been conveyed to lessee under operating lease, of accumulated amortization, depreciation, depletion for physical asset used in normal conduct of business to create and distribute product and service. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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- Definition Amount, after accumulated depreciation and excluding lessor's underlying asset for which right to use has been conveyed to lessee under operating lease, of physical asset used in normal conduct of business to create and distribute product and service. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-13 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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- Definition Amount, before accumulated depreciation and excluding lessor's underlying asset for which right to use has been conveyed to lessee under operating lease, of physical asset used in normal conduct of business to create and distribute product and service. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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