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Operating costs - Staff costs (Details) - GBP (£)
£ in Millions
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Aggregate remuneration      
Wages and salaries £ 1,251 £ 1,344 £ 1,272
Share-based incentive plans 3 50 40
Employer’s social security 79 96 95
Employer’s pension      
Defined benefit plans 37 61 73
Defined contribution plans 24 19 18
Other post employment plans 10 10 11
Staff costs £ 1,404 £ 1,580 £ 1,509