XML 291 R166.htm IDEA: XBRL DOCUMENT v3.23.2
Contingent liabilities and legal proceedings - Tax (Details)
£ in Millions
Jun. 30, 2023
GBP (£)
Brazil | Maximum | Tax contingent liability  
Disclosure of contingent liabilities [line items]  
Potential liability £ 616
India  
Disclosure of contingent liabilities [line items]  
Receivable for protest payments 116
Receivable for protest payments, corporate taxes 104
Receivable for protest payments, indirect taxes 12
India | Maximum | Tax contingent liability  
Disclosure of contingent liabilities [line items]  
Potential liability £ 90