| Item | Type | Period | Balance | Description | | Retirement Benefits | text | | | |
| Disclosure Text Block Supplement | text | | | |
| Retirement Benefits | text | | | The entire disclosure for retirement benefits. |
| Table Text Block Supplement | text | | | |
| Compensation and Employee Benefit Plans | text | | | The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. |
| Compensation and Employee Benefit Plans, Other than Share-based Compensation | text | | | The entire disclosure of an entity's employee compensation and benefit plans, excluding share-based compensation and including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, life insurance, severance, health care, unemployment and other benefit plans. |
| Defined Benefit Plan | text | | | The entire disclosure for defined benefit plan. |
| Defined Contribution Plan | text | | | The entire disclosure for defined contribution plan. |
| Multiemployer Plan | text | | | The entire disclosure for multiemployer plan. |
| Retirement Benefits, Description | text | | | |
| Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures | text | | | |
| Schedule of Defined Benefit Plans Disclosures | text | | | Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. |
| Defined Benefit Plan, Plan Assets, Allocation | text | | | Tabular disclosure of investment allocation of defined benefit plan assets. Includes, but is not limited to, investment allocation percentage or range of percentages. |
| Defined Benefit Plan, Plan Assets, Category | text | | | Tabular disclosure of defined benefit plan asset investment. Includes, but is not limited to, fair value of category of plan asset and its level within fair value hierarchy. |
| Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets | text | | | Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period. |
| Defined Benefit Plan, Description | text | | | Description of defined benefit pension and other postretirement plans. |
| Defined Contribution Plan Disclosures | text | | | Tabular disclosure of defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans. |
| Multiemployer Plan | text | | | Tabular disclosure of information about multiemployer plan. |
| Coal Industry Retiree Health Benefit Act of 1992 | text | | | |
| Japanese Welfare Pension Insurance Law | text | | | |
| Multiple-Employer Plan Accounted for as Multiemployer Plan | text | | | |
| Pension and Other Postretirement Benefits Cost (Reversal of Cost) | text | | | |
| Pension Cost (Reversal of Cost) | $ | duration | debit | Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits. |
| Other Postretirement Benefits Cost (Reversal of Cost) | $ | duration | debit | Amount of cost (reversal of cost) for other postretirement benefits. Excludes pension benefits. |
| Retirement Benefits, Description | text | | | Description of nature and type of retirement benefits. |
| Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures | text | | | Disclosures and provisions pertaining to defined benefit pension plans or other postretirement defined benefit plans. The arrangements are generally based on terms and conditions stipulated by the entity, and which contain a promise by the employer to pay certain amounts or awards at designated future dates, including a period after retirement, upon compliance with stipulated requirements. Excludes disclosures pertaining to defined contribution plans. |