Change In Accounting Policy (Narrative) (Details) - Pension Plan [Member] - Change In Methodology Of Net Periodic Pension Cost (Income) [Member] |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2022 |
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Period in years over which realized and unrealized gains/losses and appreciation/depreciation in the value of the investments are recognized based on the companies election to use market related value | 5 years | |
| Corridor percentage | 10.00% | |
| Maximum [Member] | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Market-related value, as a percentage | 110.00% | |
| Minimum [Member] | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Market-related value, as a percentage | 90.00% |