XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.25.3

Employee Benefits (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Cost | The components of net periodic benefit cost for the Company’s pension plans were:
| Three Months Ended September 30 | Nine Months Ended September 30
(Dollars in Millions) | 2025 | 2024 | 2025 | 2024
Service cost | $ | 54 |  | $ | 55 |  | $ | 160 |  | $ | 164 |
Interest cost | 102 |  | 94 |  | 307 |  | 282 |
Expected return on plan assets | (147) |  | (146) |  | (440) |  | (438) |
Prior service cost (credit) amortization | (1) |  | (1) |  | (3) |  | (3) |
Actuarial loss (gain) amortization | 1 |  | 2 |  | 3 |  | 7 |
Net periodic benefit cost(a) | $ | 9 |  | $ | 4 |  | $ | 27 |  | $ | 12 |
(a)Service cost is included in compensation and employee benefits expense on the Consolidated Statement of Income. All other components are included in other noninterest expense on the Consolidated Statement of Income.

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration