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Inventories Table - Inventory Balances (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Inventory [Line Items]    
Natural gas, NGLs and refined products $ 1,379 $ 1,259
Crude oil 171 328
Spare parts and other 431 427
Total inventories $ 1,981 $ 2,014