XML 255 R143.htm IDEA: XBRL DOCUMENT v3.21.2
Equity - Hedging and exchange reserve (Details) - GBP (£)
£ in Millions
 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Disclosure of reserves within equity [line items]      
Beginning balance £ 8,440 £ 10,156 £ 11,713
Other comprehensive income/(loss) (865) (164) 287
Transfer from other retained earnings   0  
Ending balance 8,431 8,440 10,156
Cost of hedging reserve 22 30 1
Hedging reserve      
Disclosure of reserves within equity [line items]      
Beginning balance 93 (37) (68)
Other comprehensive income/(loss) 20 125 31
Transfer from other retained earnings   5  
Ending balance 113 93 (37)
Exchange reserve      
Disclosure of reserves within equity [line items]      
Beginning balance (1,022) (781) (962)
Other comprehensive income/(loss) (672) (241) 181
Transfer from other retained earnings   0  
Ending balance (1,694) (1,022) (781)
Hedging and exchange reserve      
Disclosure of reserves within equity [line items]      
Beginning balance (929) (818) (1,030)
Other comprehensive income/(loss) (652) (116) 212
Transfer from other retained earnings   5  
Ending balance £ (1,581) £ (929) £ (818)