| Item | Type | Period | Balance | Description | | Retirement Benefits | text | | | |
| Schedule of Defined Benefit Plans Disclosures | text | | | Disclosures about an individual defined benefit pension plan or an other postretirement defined benefit plan. It may be appropriate to group certain similar plans. Also includes schedule for fair value of plan assets by major categories of plan assets by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), Significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). |
| Defined Benefit Plan Disclosure | text | | | 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. |
| Retirement Plan Type | text | | | Information by type of retirement benefit plan. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement. |
| Defined Benefit Plan, Funded (Unfunded) Status of Plan | text | | | |
| Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position | text | | | |
| Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax | text | | | |
| Defined Benefit Plan, Accumulated Benefit Obligation | $ | instant | credit | Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. |
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets | text | | | |
| Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax | text | | | |
| Defined Benefit Plan, Expected Amortization, Next Fiscal Year | text | | | |
| Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation | text | | | |
| Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost | text | | | |
| Defined Benefit Plan, Assumed Health Care Cost Trend Rates | text | | | |
| Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $ | instant | debit | Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year. |
| Defined Benefit Plan, Expected Future Benefit Payment | text | | | |
| Retirement Plan Type | | duration | | Type of plan designed to provide participants with retirement benefits. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement. |
| Defined Benefit Plan, Change in Benefit Obligation | text | | | A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. |
| Defined Benefit Plan, Change in Fair Value of Plan Assets | text | | | A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. |
| Defined Benefit Plan, Funded (Unfunded) Status of Plan, Total | $ | instant | debit | Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. |
| Assets for Plan Benefits, Defined Benefit Plan | $ | instant | debit | Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans. |
| Liability, Defined Benefit Plan, Current | $ | instant | credit | Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current. |
| Liability, Defined Benefit Plan, Noncurrent, Total | $ | instant | credit | Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. |
| Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position, Total | $ | instant | debit | Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans. |
| Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax | $ | instant | debit | Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). |
| Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax | $ | instant | credit | Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. |
| Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax, Total | $ | instant | debit | Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). |
| Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation | $ | instant | credit | Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets. |
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation | $ | instant | credit | Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets. |
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets | $ | instant | debit | Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets. |
| Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | text | | | |
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax | text | | | |
| Defined Benefit Plan, Amount Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive (Income) Loss, before Tax, Total | $ | duration | debit | Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss. |
| Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year | $ | instant | credit | Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position. |
| Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year | $ | instant | debit | Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position. |
| Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | % | instant | | Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. |
| Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | % | instant | | Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. |
| Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | % | duration | | Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. |
| Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | % | duration | | Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. |
| Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase | % | duration | | Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. |
| Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year | % | instant | | Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status. |
| Defined Benefit Plan, Ultimate Health Care Cost Trend Rate | % | instant | | Ultimate trend rate for health care cost for defined benefit postretirement plan. |
| Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate | | duration | | Year ultimate health care cost trend rate is expected to be reached, in CCYY format. |
| Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rate | text | | | |
| Defined Benefit Plan, Expected Future Benefit Payment, Year One | $ | instant | credit | Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year. |
| Defined Benefit Plan, Expected Future Benefit Payment, Year Two | $ | instant | credit | Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year. |
| Defined Benefit Plan, Expected Future Benefit Payment, Year Three | $ | instant | credit | Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year. |
| Defined Benefit Plan, Expected Future Benefit Payment, Year Four | $ | instant | credit | Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year. |
| Defined Benefit Plan, Expected Future Benefit Payment, Year Five | $ | instant | credit | Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year. |
| Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years | $ | instant | credit | Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year. |
| Pension Plan | | duration | | Plan designed to provide participant with pension benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes other postretirement benefits. |
| Other Postretirement Benefits Plan | | duration | | Plan designed to provide other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes pension benefits. |