v3.26.1
Other reserves - Summary of Other Reserves Attributable to Royal Dutch Shell Plc Shareholders (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Other comprehensive income/(loss) attributable to Shell plc shareholders $ 10,675 $ 5,041 $ 7,792 $ 15,716 $ 14,540
Repurchases of shares       (4,931) (7,038)
Total          
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Beginning balance   21,234   21,234 19,766
Other comprehensive income/(loss) attributable to Shell plc shareholders       (800) 6,159
Transfer from other comprehensive income       (36) 18
Repurchases of shares [1]       12 17
Share-based compensation       (554) (486)
Ending balance 19,856   25,473 19,856 25,473
Merger reserve          
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Beginning balance   37,298   37,298 37,298
Other comprehensive income/(loss) attributable to Shell plc shareholders       0 0
Transfer from other comprehensive income       0 0
Repurchases of shares       0 0
Share-based compensation       0 0
Ending balance 37,298   37,298 37,298 37,298
Share premium reserve          
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Beginning balance   154   154 154
Other comprehensive income/(loss) attributable to Shell plc shareholders       0 0
Transfer from other comprehensive income       0 0
Repurchases of shares       0 0
Share-based compensation       0 0
Ending balance 154   154 154 154
Capital redemption reserve          
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Beginning balance   303   303 270
Other comprehensive income/(loss) attributable to Shell plc shareholders       0 0
Transfer from other comprehensive income       0 0
Repurchases of shares       12 17
Share-based compensation       0 0
Ending balance 316   287 316 287
Share plan reserve          
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Beginning balance   1,359   1,359 1,417
Other comprehensive income/(loss) attributable to Shell plc shareholders       0 0
Transfer from other comprehensive income       0 0
Repurchases of shares       0 0
Share-based compensation       (554) (486)
Ending balance 805   930 805 930
Accumulated other comprehensive income          
Disclosure Of Accumulated Other Comprehensive Income Loss [Line Items]          
Beginning balance   $ (17,880)   (17,880) (19,373)
Other comprehensive income/(loss) attributable to Shell plc shareholders       (800) 6,159
Transfer from other comprehensive income       (36) 18
Repurchases of shares       0 0
Share-based compensation       0 0
Ending balance $ (18,716)   $ (13,196) $ (18,716) $ (13,196)
[1]     The amount charged to retained earnings is based on prevailing exchange rates on payment date.