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Intangibles (Schedule Of Intangible Assets) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 4,441 | $ 4,441
Accumulated Amortization | (1,257) | (1,177)
Net Carrying Amount | 3,184 | 3,264
Customer Relationships - Business [Member] |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 800 | 800
Accumulated Amortization | (285) | (267)
Net Carrying Amount | 515 | 533
Customer Relationships - Wholesale [Member] |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 3,491 | 3,491
Accumulated Amortization | (855) | (800)
Net Carrying Amount | 2,636 | 2,691
Trademarks and Tradenames [Member] |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 150 | 150
Accumulated Amortization | (117) | (110)
Net Carrying Amount | $ 33 | $ 40

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