v3.24.1.1.u2
Trade and other receivables - Schedule of average expected loss rates and balances (Details) - GBP (£)
£ in Millions
Mar. 31, 2024
Mar. 31, 2023
Disclosure of financial assets [line items]    
Trade receivables £ 4,332 £ 3,052
Accrued income    
Disclosure of financial assets [line items]    
Expected credit loss rate 3.00% 3.00%
Trade receivables £ 533 £ 462
Retail customer receivables    
Disclosure of financial assets [line items]    
Trade receivables £ 2,437 £ 2,325
0 – 30 days past due | Retail customer receivables    
Disclosure of financial assets [line items]    
Expected credit loss rate 3.00% 3.00%
Trade receivables £ 822 £ 838
30 – 60 days past due | Retail customer receivables    
Disclosure of financial assets [line items]    
Expected credit loss rate 14.00% 13.00%
Trade receivables £ 219 £ 235
60 – 90 days past due | Retail customer receivables    
Disclosure of financial assets [line items]    
Expected credit loss rate 21.00% 23.00%
Trade receivables £ 125 £ 139
3 – 6 months past due | Retail customer receivables    
Disclosure of financial assets [line items]    
Expected credit loss rate 27.00% 32.00%
Trade receivables £ 173 £ 189
6 – 12 months past due | Retail customer receivables    
Disclosure of financial assets [line items]    
Expected credit loss rate 34.00% 43.00%
Trade receivables £ 191 £ 178
Over 12 months past due | Retail customer receivables    
Disclosure of financial assets [line items]    
Expected credit loss rate 73.00% 88.00%
Trade receivables £ 374 £ 284