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Investments in Affiliates (Schedule of Transactions with Affiliates) (Details) - Related Party - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Investments in and Advances to Affiliates, Activity [Line Items]      
Purchases $ 452 $ 490 $ 590
Sales and other credits $ 89 $ 212 $ 72