Other equity
 12 Months Ended
Jun. 30, 2021
Text block [abstract]  
Other equity
17    Other equity
 
    
2021
     2020     2019    
Recognition and measurement
    
US$M
     US$M     US$M      
Share premium account
   
 
518
 
     518       518     The share premium account represents the premium paid on the issue of BHP Group Plc shares recognised in accordance with the UK Companies Act 2006.
Foreign currency translation reserve
   
 
43
 
     39       37     The foreign currency translation reserve represents exchange differences arising from the translation of
non-US
dollar functional currency operations within the Group into US dollars.
Employee share awards reserve
   
 
268
 
     246       213    
The employee share awards reserve represents the accrued employee entitlements to share awards that have been charged to the income statement and have not yet been exercised.
Once exercised, the difference between the accumulated fair value of the awards and their historical
on-market
purchase price is recognised in retained earnings.
Cash flow hedge reserve
   
 
100
 
     50       114     The cash flow hedge reserve represents hedging gains and losses recognised on the effective portion of cash flow hedges. The cumulative deferred gain or loss on the hedge is recognised in the income statement when the hedged transaction impacts the income statement, or is recognised as an adjustment to the cost of
non-financial
hedged items. The hedging reserve records the portion of the gain or loss on a hedging instrument in a cash flow hedge that is determined to be an effective hedge relationship.
Cost of hedging reserve
   
 
(54
) 
     (23 )      (74 )    The cost of hedging reserve represents the recognition of certain costs of hedging for example, basis adjustments, which have been excluded from the hedging relationship and deferred in other comprehensive income until the hedged transaction impacts the income statement.
Equity investments reserve
   
 
15
 
     16       17     The equity investments reserve represents the revaluation of investments in shares recognised through other comprehensive income. Where a revalued financial asset is sold, the relevant portion of the reserve is transferred to retained earnings.
Capital redemption reserve
   
 
177
 
     177       177     The capital redemption reserve represents the par value of BHP Group Plc shares that were purchased and subsequently cancelled. The cancellation of the shares creates a
non-distributable
capital redemption reserve.
Non-controlling
interest contribution reserve
   
 
1,283
 
     1,283       1,283     The
non-controlling
interest contribution reserve represents the excess of consideration received over the book value of net assets attributable to equity instruments when acquired by
non-controlling
interests.
    
 
 
    
 
 
    
 
 
      
Total reserves
   
 
2,350
 
     2,306       2,285      
    
 
 
    
 
 
    
 
 
      
Summarised financial information relating to each of the Group’s subsidiaries with
non-controlling
interests (NCI) that are material to the Group before any intra-group eliminations is shown below:
 
    
2021
      2020  
US$M
   
Minera

Escondida

Limitada
    
Other

individually

immaterial

subsidiaries

(incl. intra

-group

eliminations)
     
Total
      Minera
Escondida
Limitada		     Other
individually
immaterial
subsidiaries
(incl. intra
-group
eliminations)		      Total  
Group share (per cent)
   
 
57.5
 
                       57.5                   
    
 
 
                      
 
 
                   
Current assets
   
 
2,996
 
                       2,432                   
Non-current
assets
   
 
11,867
 
                       12,121                   
Current liabilities
   
 
(1,912
) 
                       (1,614 )                  
Non-current
liabilities
   
 
(4,733
) 
                       (4,613 )                  
    
 
 
                      
 
 
                   
Net assets
   
 
8,218
 
                       8,326                   
    
 
 
    
 
 
     
 
 
     
 
 
    
 
 
     
 
 
  
Net assets attributable to NCI
   
 
3,493
 
  
 
848
 
   
 
4,341
 
      3,539       771        4,310  
    
 
 
    
 
 
     
 
 
     
 
 
    
 
 
     
 
 
  
Revenue
   
 
9,470
 
                       6,719                   
Profit after taxation
   
 
3,605
 
                       1,088                   
Other comprehensive income
   
 
27
 
                       (27 )                  
    
 
 
                      
 
 
                   
Total comprehensive income
   
 
3,632
 
                       1,061                   
Profit after taxation attributable to NCI
   
 
1,532
 
  
 
615
 
   
 
2,147
 
      462       318        780  
Other comprehensive income attributable to NCI
   
 
11
 
  
 
–
 
   
 
11
 
      (11 )      –        (11 ) 
    
 
 
    
 
 
     
 
 
     
 
 
    
 
 
     
 
 
  
Net operating cash flow
   
 
5,007
 
                       2,637                   
Net investing cash flow
   
 
(655
) 
                       (919 )                  
Net financing cash flow
   
 
(4,001
) 
                       (1,920 )                  
    
 
 
    
 
 
     
 
 
     
 
 
    
 
 
     
 
 
  
Dividends paid to NCI
   
 
1,590
 
  
 
537
 
   
 
2,127
 
      757       286        1,043  
    
 
 
    
 
 
     
 
 
     
 
 
    
 
 
     
 
 
  
While the Group controls Minera Escondida Limitada, the
non-controlling
interests hold certain protective rights that restrict the Group’s ability to sell assets held by Minera Escondida Limitada, or use the assets in other subsidiaries and operations owned by the Group. Minera Escondida Limitada is also restricted from paying dividends without the approval of the
non-controlling
interests.