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Fair Value Information (Fair Value Of Financial Instruments) (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Inputs, Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and cash equivalents [1] $ 853 $ 1,093
Time deposits [2] 143 169
Carrying (Reported) Amount, Fair Value Disclosure | Fair Value, Inputs, Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term debt [3] 7 2
Long-term debt [4] 7,963 7,982
Estimated Fair Value, Fair Value Disclosure | Fair Value, Inputs, Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Cash and cash equivalents [1] 853 1,093
Time deposits [2] 143 169
Estimated Fair Value, Fair Value Disclosure | Fair Value, Inputs, Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions    
Short-term debt [3] 7 2
Long-term debt [4] $ 7,412 $ 7,569
[1] Cash equivalents are composed of certificates of deposit, time deposits and other interest-bearing investments with original maturity dates of 90 days or less. Cash equivalents are recorded at cost, which approximates fair value.
[2] Time deposits are composed of deposits with original maturities of more than 90 days but less than one year and instruments with original maturities of greater than one year, included in Other current assets or Other Assets in the consolidated balance sheet, as appropriate. Time deposits are recorded at cost, which approximates fair value.
[3] Short-term debt is composed of U.S. commercial paper and/or other similar short-term debt issued by non-U.S. subsidiaries, all of which are recorded at cost, which approximates fair value.
[4] Long-term debt includes the current portion of these debt instruments. Fair values were estimated based on quoted prices for financial instruments for which all significant inputs were observable, either directly or indirectly.