v3.25.2
Segment information - Summary of Information by Geographical Area (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of geographical areas [line items]      
Third-party revenue, by origin $ 284,312 $ 316,620 $ 381,314
Goodwill, other intangible assets, property, plant and equipment, joint ventures and associates at December 31 234,176 246,205 248,207
Europe      
Disclosure of geographical areas [line items]      
Third-party revenue, by origin 92,480 118,135 135,975
Goodwill, other intangible assets, property, plant and equipment, joint ventures and associates at December 31 40,971 48,008 40,161
Asia, Oceania, Africa      
Disclosure of geographical areas [line items]      
Third-party revenue, by origin 98,343 99,967 126,643
Goodwill, other intangible assets, property, plant and equipment, joint ventures and associates at December 31 88,588 91,374 97,019
USA      
Disclosure of geographical areas [line items]      
Third-party revenue, by origin 65,089 70,291 87,085
Goodwill, other intangible assets, property, plant and equipment, joint ventures and associates at December 31 55,245 57,261 59,233
Other Americas      
Disclosure of geographical areas [line items]      
Third-party revenue, by origin 28,400 28,227 31,611
Goodwill, other intangible assets, property, plant and equipment, joint ventures and associates at December 31 49,372 49,562 51,794
UK      
Disclosure of geographical areas [line items]      
Third-party revenue, by origin 28,011 44,815 50,236
Goodwill, other intangible assets, property, plant and equipment, joint ventures and associates at December 31 $ 15,822 $ 21,478 $ 20,772