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Related Party Transactions
12 Months Ended
Dec. 31, 2021
Related Party Transactions [Abstract]  
Related Party Transactions Related Party Transactions
Sales to and purchases from unconsolidated entities for 2021, 2020 and 2019 are as follows:
(in millions)202120202019
Sales to unconsolidated affiliates$1 $10 $10 
Purchases from unconsolidated affiliates18 16 22