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Contingent liabilities and legal proceedings - USL’s dispute with IDBI Bank Limited (Details)
₨ in Millions, £ in Millions
Apr. 01, 2015
GBP (£)
Apr. 01, 2015
INR (₨)
Dec. 31, 2022
GBP (£)
Jun. 30, 2022
GBP (£)
Dec. 31, 2021
GBP (£)
Jun. 30, 2021
GBP (£)
Jul. 03, 2013
GBP (£)
Jul. 03, 2013
INR (₨)
Disclosure of contingent liabilities [line items]                
Borrowings     £ 15,169 £ 14,137 £ 12,331 £ 12,109    
IDBI Bank Limited | United Spirits Limited                
Disclosure of contingent liabilities [line items]                
Damages claimed £ 5 ₨ 459            
IDBI Bank Limited | IDBI term loan | United Spirits Limited                
Disclosure of contingent liabilities [line items]                
Borrowings             £ 63 ₨ 6,280