v3.26.1
Share capital - Schedule of share capital (Details) - GBP (£)
£ in Millions, shares in Millions
1 Months Ended 12 Months Ended
Jun. 30, 2024
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Disclosure of classes of share capital [line items]        
Issued in rights issue (in shares) 1,085      
Equity, beginning balance   £ 37,826 £ 29,892 £ 29,562
Rights Issue     6,839  
Issued during the year in lieu of dividends [1]   0 0 (1)
Equity, ending balance   £ 39,330 £ 37,826 £ 29,892
Share capital        
Disclosure of classes of share capital [line items]        
Issued capital beginning balance (in shares)   5,133 3,967  
Issued in rights issue (in shares)     1,085  
Issued during the year in lieu of dividends (in shares)   66 81  
Issued capital ending balance (in shares)   5,199 5,133 3,967
Equity, beginning balance   £ 638 £ 493 £ 488
Rights Issue     135  
Issued during the year in lieu of dividends [1]   9 10 5
Equity, ending balance   £ 647 £ 638 £ 493
[1] Included within the share premium account are costs associated with scrip dividends.