Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Summary Of Gain/(Loss) Recognized In Income) (Details)

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Financial Instruments (Summary Of Gain/(Loss) Recognized In Income) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Foreign Exchange Contracts | Non-Designated Hedging Instruments [Member]      
Derivatives, Fair Value [Line Items]      
Gain/(loss) amounts recognized in income [1] $ 0 $ 1 $ 3
[1] Included within Operating expenses on the Consolidated Statements of Income/(Loss), which is primarily offset by changes in the value of the underlying assets and liabilities.