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Other notes to the unaudited Condensed Consolidated Interim Financial Statements - Income statement narrative (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Impairment loss | $ 629 | $ 1,238
Impairment loss, after tax | 545 | 877
Renewables and Energy Solutions |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Impairment loss | $ 581 |
Integrated Gas |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Impairment loss |  | 666
Marketing |  |
Disclosure of impairment loss and reversal of impairment loss [line items] |  |
Impairment loss |  | $ 399

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