Deferred Compensation Arrangement With Individual, Calculation Of Postretirement Benefits, Number Of Consecutive Years

No definition available.

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- Definition

Deferred Compensation Arrangement With Individual, Calculation Of Postretirement Benefits, Term

+ References

No definition available.

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- Definition

Defined Contribution Plan, Employer Non-Elective Contribution, Vesting Period

+ References

No definition available.

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- Definition

Number of Defined Benefit Pension Plans

+ References

No definition available.

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- Definition

Number of Defined Benefit Postretirement Plan

+ References

No definition available.

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- Definition

Maximum term of the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Minimum period the individual is required to perform services to be fully vested under the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

+ References

No definition available.

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- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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- Definition

Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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- Definition

Weighted-average interest crediting rate used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate.

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- Definition

Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

Amount of contribution expected to be received by defined benefit plan from employer in remainder of current fiscal year. Excludes contribution previously paid by employer in current fiscal year.

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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

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- Definition

Amount of cost for defined contribution plan.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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Percentage employer matches of the employee's percentage contribution matched.

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No definition available.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

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.

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-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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EMPLOYEE BENEFIT PLANS - Narrative (Details)	12 Months Ended
EMPLOYEE BENEFIT PLANS - Narrative (Details)	Dec. 31, 2024 USD ($) plan shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pension and other retirement plan assets	$ 658,000,000	$ 568,000,000
Number of defined benefit pension plans \| plan	3
Number of defined benefit postretirement plan \| plan	4
Expected future employer contributions, remainder of fiscal year	$ 0
Defined benefit plan, accumulated benefit obligation	1,090,000,000.00	1,120,000,000
Defined contribution plan, cost	$ 165,000,000	114,000,000	$ 55,000,000
Deferred compensation arrangement with individual, maximum contractual term	10 years
Accrued personnel cost	$ 705,000,000	676,000,000
SVBB
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pension and other retirement plan assets	0
Postretirement Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan termination			27,000,000
Total pension expense	$ 1,000,000	$ 1,000,000	$ (27,000,000)
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs vesting period	3 years
RSUs outstanding (in shares) \| shares	0	20,255	42,989
RSUs grants (in shares) \| shares	0	0
RSUs vested and settled in period, fair value	$ 31,000,000	$ 16,000,000
BancShares Pension Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer contributions	$ 0	0
Vesting period	5 years
Number of consecutive years	5 years
Calculation of postretirement benefits, term	10 years
Bancorporation Pension Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer contributions	$ 0	0
Vesting period	5 years
Number of consecutive years	5 years
Calculation of postretirement benefits, term	10 years
CIT Pension Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer contributions	$ 0	0
Supplemental and Executive Retirement Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer contributions	$ 0	$ 0
Interest crediting rate	4.30%	3.90%
401(k) Contribution Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of defined benefit pension plans \| plan	2
FCB Legacy 401(k) Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of employees' gross pay	4.50%
FCB Legacy 401(k) Plan \| Defined Contribution Plan, Employer Matching Contribution, First Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of match	100.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay	3.00%
FCB Legacy 401(k) Plan \| Defined Contribution Plan, Employer Matching Contribution, Next Portion
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of match	50.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay	3.00%
FCB 401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of match	100.00%
Defined contribution plan, employer non-elective contribution, vesting period	3 years
FCB 401(k) Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of employees' gross pay	6.00%
FCB 401(k) Plan \| Defined Contribution Plan, Employer Matching Contribution, Minimum Contribution
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer matching contribution, percent of employees' gross pay	3.00%