XML 230 R109.htm IDEA: XBRL DOCUMENT v3.22.2
Post employment benefits - Balance sheet analysis of post employment plans (Details) - GBP (£)
£ in Millions
Jun. 30, 2022
Jun. 30, 2021
Disclosure of defined benefit plans [line items]    
Non-current assets £ 1,553 £ 1,018
Non-current liabilities (402) (574)
Surplus restriction 14 3
Funded plans    
Disclosure of defined benefit plans [line items]    
Non-current assets 1,553 1,018
Non-current liabilities (144) (279)
Unfunded plans    
Disclosure of defined benefit plans [line items]    
Non-current liabilities £ (258) £ (295)