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Employee Benefits, Restructuring and Post-retirement Employee Benefits Provisions - Summary of Reconciliation of Employee Benefits, Restructuring and Post-retirement Employee Benefits (Detail) $ in Millions | 12 Months Ended
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Jun. 30, 2019 USD ($)
Disclosure of employee benefits restructuring and post retirement employee benefits provisions [line items] |
At the beginning of the financial year | $ 1,689
Charge/(credit) for the year: |
Underlying | 1,226
Discounting | 42
Net interest expense | (21)
Exchange variations | (54)
Released during the year | (157)
Remeasurement gains taken to retained earnings | 20
Utilisation | (1,034)
At the end of the financial year | 1,711
Employee benefits [member] |
Disclosure of employee benefits restructuring and post retirement employee benefits provisions [line items] |
At the beginning of the financial year | 1,232
Charge/(credit) for the year: |
Underlying | 1,011
Exchange variations | (49)
Released during the year | (146)
Utilisation | (908)
At the end of the financial year | 1,140
Restructuring [member] |
Disclosure of employee benefits restructuring and post retirement employee benefits provisions [line items] |
At the beginning of the financial year | 8
Charge/(credit) for the year: |
Underlying | 160
Exchange variations | 1
Released during the year | (11)
Utilisation | (80)
At the end of the financial year | 78
Post-retirement employee benefits [member] |
Disclosure of employee benefits restructuring and post retirement employee benefits provisions [line items] |
At the beginning of the financial year | 449
Charge/(credit) for the year: |
Underlying | 55
Discounting | 42
Net interest expense | (21)
Exchange variations | (6)
Remeasurement gains taken to retained earnings | 20
Utilisation | (46)
At the end of the financial year | $ 493

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