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Derivative Financial Instruments (Notional Value Of Outstanding Cash Flow Hedge Contracts By Year Of Maturity And Net Unrealized (Loss) Gain Included In Accumulated Other Comprehensive Income) (Details) - Designated as Hedging Instrument - Cash Flow Hedging - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Foreign Exchange Contract |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 3,150 | $ 2,930
Foreign Exchange Contract, Maturity 2025 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 660 | 2,010
Foreign Exchange Contract, Maturity 2026 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 1,860 | 920
Foreign Exchange Contract, Maturity 2027 |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | $ 630 | $ 0

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