Pension And Other Postretirement Benefit Programs - Healthcare Trend Rates (Details) - Retiree Health and Life Insurance Plans $ in Millions |
12 Months Ended |
|---|---|
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Dec. 31, 2018
USD ($)
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| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |
| Effect on total service and interest cost components, one percentage point increase | $ 0.0 |
| Effect on total service and interest cost components, one percentage point decrease | 0.0 |
| Effect on postretirement benefit obligation, one percentage point increase | (0.8) |
| Effect on postretirement benefit obligation, one percentage point decrease | $ 1.0 |
| X | ||||||||||
- Definition Amount of decrease in accumulated postretirement benefit obligation from one-percentage-point decrease in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of decrease in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point decrease in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase in accumulated postretirement benefit obligation from one-percentage-point increase in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of increase in service and interest cost components of net periodic postretirement benefit cost from one-percentage-point increase in assumed health care cost trend rate. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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. No definition available.
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- Details
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