XML 184 R177.htm IDEA: XBRL DOCUMENT v3.10.0.1
Post-retirement benefit obligations - Reconciliation Plan Assets, RF, Contributions (Details) - Pension
R in Millions, $ in Millions
 12 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2018
ZAR (R)
Jun. 30, 2017
ZAR (R)
Disclosure of net defined benefit liability (asset) [line items]      
Beginning balance   R (6,638)  
Ending balance   (6,548) R (6,638)
Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Beginning balance   50,854 49,191
Movements recognised in the income statement:   4,774 4,465
interest expense (income)   4,896 4,593
interest on asset limitation   (122) (128)
Actuarial gains (losses) recognised in other comprehensive income:   (1,779) (1,728)
Return on plan assets   (1,779) (1,728)
Member contributions   447 411
Employer contribution   2,224 1,165
Benefits paid   (2,712) (2,365)
Translation of foreign operations   210 (285)
Ending balance   54,018 50,854
Actual return on plan assets   2,995 2,737
South Africa      
Disclosure of net defined benefit liability (asset) [line items]      
Beginning balance   622  
Ending balance   582 622
Projected pension contributions for next fiscal year   1,009  
South Africa | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Beginning balance   48,340 46,752
Movements recognised in the income statement:   4,707 4,407
interest expense (income)   4,829 4,535
interest on asset limitation   (122) (128)
Actuarial gains (losses) recognised in other comprehensive income:   (1,959) (1,930)
Return on plan assets   (1,959) (1,930)
Member contributions   447 411
Employer contribution   991 900
Benefits paid   (2,398) (2,200)
Ending balance   50,128 48,340
Actual return on plan assets   2,748 2,477
Foreign Countries      
Disclosure of net defined benefit liability (asset) [line items]      
Beginning balance   (7,260)  
Ending balance   (7,130) (7,260)
Projected pension contributions for next fiscal year   287  
Foreign Countries | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Beginning balance   2,514 2,439
Movements recognised in the income statement:   67 58
interest expense (income)   67 58
Actuarial gains (losses) recognised in other comprehensive income:   180 202
Return on plan assets   180 202
Employer contribution   1,233 265
Benefits paid   (314) (165)
Translation of foreign operations   210 (285)
Ending balance   3,890 2,514
Actual return on plan assets   247 R 260
United States of America | Plan assets      
Disclosure of net defined benefit liability (asset) [line items]      
Once-off payment made by the employer to the fund $ 75 R 963