XML 20 R9.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Inventories
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Inventories 2.  Inventories
Inventories consisted of the following:
March 31,
2024
December 31,
2023
 (In millions)
Crude oil and natural gas liquids$100 $72 
Materials and supplies282 232 
Total Inventories$382 $304