v3.26.1
Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Standardized Measure of Discounted Future Net Cash Flows (Detail) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Argentina [member]      
Disclosure of discounted future net cash flow [line items]      
Future cash inflows $ 52,831 $ 46,028 $ 41,735
Future production costs (17,350) (18,294) (18,683)
Future development costs (12,278) (9,090) (11,136)
Future income tax expenses (5,758) (7,594) (3,396)
10% annual discount for estimated timing of cash flows (8,185) (4,787) (4,013)
Total standardized measure of discounted future net cash flows 9,260 6,263 4,507
Worldwide [member]      
Disclosure of discounted future net cash flow [line items]      
Future cash inflows 52,831 46,028 41,735
Future production costs (17,350) (18,294) (18,683)
Future development costs (12,278) (9,090) (11,136)
Future income tax expenses (5,758) (7,594) (3,396)
10% annual discount for estimated timing of cash flows (8,185) (4,787) (4,013)
Total standardized measure of discounted future net cash flows $ 9,260 $ 6,263 $ 4,507