v3.25.4
Employee compensation and benefits - Movement on HSBC share option plans (Details)
 12 Months Ended
Dec. 31, 2025
shares
£ / shares
Dec. 31, 2025
shares
£ / shares
$ / shares
Dec. 31, 2024
shares
£ / shares
Dec. 31, 2024
shares
$ / shares
£ / shares
Employee Compensation And Benefits [Abstract]        
Share options outstanding at beginning of period (in shares) | shares 75,335,399 75,335,399 83,994,000 83,994,000
Granted during the year (in shares) | shares 11,901,000 11,901,000 11,845,000 11,845,000
Exercised during the year (in shares) | shares (25,388,000) (25,388,000) (16,776,000) (16,776,000)
Expired during the year (in shares) | shares (1,633,000) (1,633,000) (2,454,000) (2,454,000)
Forfeited during the year (in shares) | shares (1,313,000) (1,313,000) (1,274,000) (1,274,000)
Share options outstanding at end of period (in shares) | shares 58,902,349 58,902,349 75,335,399 75,335,399
Of which exercisable (in shares) | shares 13,352,000 13,352,000 1,446,000 1,446,000
Weighted average remaining contractual life of outstanding share options 1 year 11 months 4 days 1 year 11 months 4 days 2 years 1 month 6 days 2 years 1 month 6 days
WAEP at beginning of period (in GBP per share) | £ / shares £ 3.81   £ 3.42  
Granted during the year (in GBP per share) | £ / shares 7.61   5.30  
Exercised during the year (in GBP per share) | £ / shares 3.00   2.94  
Expired during the year (in GBP per share) | £ / shares 4.85   4.20  
Forfeited during the year (in GBP per share) | £ / shares 4.37   3.48  
WAEP at end of period (in GBP per share) | £ / shares 4.84   3.81  
Of which exercisable (in GBP per share) | £ / shares £ 2.90 £ 2.90 £ 3.34 £ 3.34
Weighted average share price, share options granted (in dollars per share) | $ / shares   £ 1.90   £ 1.66
Weighted average share price at the date the options were exercise (in dollars per share) | $ / shares   £ 13.88   £ 8.54