v3.26.1
Financial structure and financial costs - Variations of financial debt (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period $ 51,205 $ 47,813 $ 58,084
Cash changes 3,812 2,390 (14,147)
Non-cash changes, Change in scope, including IFRS 5 reclassifications (1,201) (207) 1,098
Non-cash changes, Foreign currency 2,000 (966) 443
Non-cash changes, Changes in fair value 560 (328) 4
Non-cash changes, Other 1,451 2,503 2,331
Balance as of the end of the period 57,827 51,205 47,813
Non-current financial debt and related financial instruments      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period 41,228 38,083 42,533
Cash changes 7,965 7,532 130
Non-cash changes, Change in scope, including IFRS 5 reclassifications (1,176) (262) 571
Non-cash changes, Foreign currency 615 (204) 44
Non-cash changes, Changes in fair value 434 (321) 10
Non-cash changes, Reclassification Non-current/Current (4,591) (5,740) (7,186)
Non-cash changes, Other 1,250 2,140 1,981
Balance as of the end of the period 45,725 41,228 38,083
Non-current financial assets      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period (2,305) (2,395) (2,731)
Cash changes (16)    
Non-cash changes, Change in scope, including IFRS 5 reclassifications 40 37 (96)
Non-cash changes, Foreign currency (105) 37 (21)
Non-cash changes, Changes in fair value (159) 132 353
Non-cash changes, Reclassification Non-current/Current 350 340 387
Non-cash changes, Other (1,075) (456) (287)
Balance as of the end of the period (3,270) (2,305) (2,395)
Non-current financial debt      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period 43,533 40,478 45,264
Cash changes 7,981 7,532 130
Non-cash changes, Change in scope, including IFRS 5 reclassifications (1,216) (299) 667
Non-cash changes, Foreign currency 720 (241) 65
Non-cash changes, Changes in fair value 593 (453) (343)
Non-cash changes, Reclassification Non-current/Current (4,941) (6,080) (7,573)
Non-cash changes, Other 2,325 2,596 2,268
Balance as of the end of the period 48,995 43,533 40,478
Current financial debt and related financial instruments      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period 9,933 9,420 15,589
Cash changes (4,153) (5,142) (14,277)
Non-cash changes, Change in scope, including IFRS 5 reclassifications (143) 316 186
Non-cash changes, Foreign currency 1,382 (757) 392
Non-cash changes, Changes in fair value 126 (7) (6)
Non-cash changes, Reclassification Non-current/Current 4,591 5,740 7,186
Non-cash changes, Other 201 363 350
Balance as of the end of the period 11,937 9,933 9,420
Current financial assets      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period (755) (616) (401)
Cash changes 593 609 383
Non-cash changes, Change in scope, including IFRS 5 reclassifications 30 (2) (1)
Non-cash changes, Foreign currency (40) 20 (8)
Non-cash changes, Changes in fair value 164 (107) (68)
Non-cash changes, Reclassification Non-current/Current (350) (340) (387)
Non-cash changes, Other (131) (319) (134)
Balance as of the end of the period (489) (755) (616)
Current borrowings      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period 10,024 9,590 15,502
Cash changes (4,746) (5,751) (14,660)
Non-cash changes, Change in scope, including IFRS 5 reclassifications (172) 321 181
Non-cash changes, Foreign currency 1,395 (760) 389
Non-cash changes, Changes in fair value 264 (138) 121
Non-cash changes, Reclassification Non-current/Current 4,941 6,080 7,573
Non-cash changes, Other 332 682 484
Balance as of the end of the period 12,038 10,024 9,590
Other current financial liabilities      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period 664 446 488
Non-cash changes, Change in scope, including IFRS 5 reclassifications (1) (3) 6
Non-cash changes, Foreign currency 27 (17) 11
Non-cash changes, Changes in fair value (302) 238 (59)
Balance as of the end of the period 388 664 446
Financial liabilities and financial assets classified as held for sale      
Financial structure, financial costs and financial instruments      
Balance as of the beginning of the period 44 310 (38)
Non-cash changes, Change in scope, including IFRS 5 reclassifications 118 (261) 341
Non-cash changes, Foreign currency 3 (5) 7
Balance as of the end of the period $ 165 $ 44 $ 310