v3.26.3
Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Increase (Decrease) in Shareholders' Equity [Roll Forward]        
Beginning balance     $ 26,535  
Ending balance $ 40,271   40,271  
Foreign Currency Translation        
Increase (Decrease) in Shareholders' Equity [Roll Forward]        
Beginning balance (1,055) $ (1,758) (1,149) $ (2,390)
Other comprehensive income (loss) 132 466 226 1,098
Ending balance (922) (1,292) (922) (1,292)
Retirement Benefit Plans        
Increase (Decrease) in Shareholders' Equity [Roll Forward]        
Beginning balance (1,957) (2,193) (1,987) (2,179)
Other comprehensive income (loss) 13 20 43 6
Ending balance (1,944) (2,173) (1,944) (2,173)
Other        
Increase (Decrease) in Shareholders' Equity [Roll Forward]        
Beginning balance 250 235 255 246
Other comprehensive income (loss) (13) 23 (18) 12
Ending balance 237 259 237 259
Accumulated Other Comprehensive Loss        
Increase (Decrease) in Shareholders' Equity [Roll Forward]        
Beginning balance (2,761) (3,716) (2,880) (4,322)
Other comprehensive income (loss) 132 510 251 1,116
Ending balance $ (2,629) $ (3,206) $ (2,629) $ (3,206)