XML 101 R95.htm IDEA: XBRL DOCUMENT v3.26.1
Risks Arising from Financial Instruments - Summary of Allowance for Impairment (Detail) - Impairment losses [member] - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Disclosure of impairment loss and reversal of impairment loss [line items]    
Beginning balance $ (468) $ (438)
Impairment losses (25) (53)
Derecognition 10 64
Currency translation and other (4) (40)
Ending balance $ (487) $ (468)