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Pension and Other Post-Employment Benefits (Plan Assets By Investment Asset Category And Fair Value Input Level) (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | $ 107 | $ 110
Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 11 | 13
Fixed Income [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 60 | 61
Equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 36 | 36
Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 11 | 13
Level 1 [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 11 | 13
Level 1 [Member] | Fixed Income [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 0 | 0
Level 1 [Member] | Equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 0 | 0
Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 96 | 97
Level 2 [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 0 | 0
Level 2 [Member] | Fixed Income [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 60 | 61
Level 2 [Member] | Equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 36 | 36
Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 0 | 0
Level 3 [Member] | Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 0 | 0
Level 3 [Member] | Fixed Income [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | 0 | 0
Level 3 [Member] | Equity [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value of Plan Assets, End of Year | $ 0 | $ 0

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