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Investments (Tables)
6 Months Ended
Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Schedule of marketable securities
The aggregate carrying values of our short-term and long-term debt investment securities consisted of the following at June 30, 2023 and December 31, 2022 (in millions):
June 30, 2023December 31, 2022
Available-for-sale investment securities
Time deposits$150 $285 
Commercial paper39 
Debt securities13 13 
Total available-for-sale investment securities167 337 
Held-to-maturity investment securities
Corporate bonds207 177 
Total held-to-maturity investment securities207 177 
Total investments in debt securities$374 $514