v3.25.4
Principal subsidiaries - Disclosure of principal subsidiaries (Details)
12 Months Ended
Dec. 31, 2025
Barclays Bank Delaware  
Disclosure of subsidiaries [line items]  
Percentage of voting rights held 100.00%
Non-controlling interests - proportion of ownership interests 0.00%
Non-controlling interests - proportion of voting interests 0.00%
Barclays Bank Ireland PLC  
Disclosure of subsidiaries [line items]  
Percentage of voting rights held 100.00%
Non-controlling interests - proportion of ownership interests 0.00%
Non-controlling interests - proportion of voting interests 0.00%
Barclays Capital Inc.  
Disclosure of subsidiaries [line items]  
Percentage of voting rights held 100.00%
Non-controlling interests - proportion of ownership interests 0.00%
Non-controlling interests - proportion of voting interests 0.00%
Barclays Capital Securities Limited  
Disclosure of subsidiaries [line items]  
Percentage of voting rights held 100.00%
Non-controlling interests - proportion of ownership interests 0.00%
Non-controlling interests - proportion of voting interests 0.00%
Barclays Securities Japan Limited  
Disclosure of subsidiaries [line items]  
Percentage of voting rights held 100.00%
Non-controlling interests - proportion of ownership interests 0.00%
Non-controlling interests - proportion of voting interests 0.00%
Barclays US LLC  
Disclosure of subsidiaries [line items]  
Percentage of voting rights held 100.00%
Non-controlling interests - proportion of ownership interests 0.00%
Non-controlling interests - proportion of voting interests 0.00%