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v3.19.2

New and Amended Accounting Standards and Interpretations - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jul. 01, 2018
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Financial assets | $ 20,411 | $ 20,411 | $ 20,008 |  |
Available for sale | 1,390 | 1,390 | 1,199 |  |
Cumulative cost of hedging | 114 | 114 | 58 | $ 153 |
Impact of applying this change would have been to increased/(reduce) revenue |  | (44,288) | (43,129) | (35,740) |
Impact of applying this change would have been to increased/(reduce) expenses |  | 28,022 | 27,527 | 24,120 |
Impact on profit after tax |  | 9,185 | 4,823 | 6,222 |
IAS 39 [member] | Loans and receivables [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Financial assets |  |  | 17,700 |  |
IAS 39 [member] | Non-current investment in shares [member] | Available for sale securities [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Available for sale |  |  | 33 |  |
IAS 39 [member] | Non-current other investments [member] | Financial assets held at fair value through profit or loss [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Available for sale |  |  | 47 |  |
IFRS 9 [member] | Financial assets held at amortised cost [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Financial assets |  |  |  |  | $ 17,700
IFRS 9 [member] | Non-current investment in shares [member] | Financial assets held at fair value through other comprehensive income [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Available for sale |  |  |  |  | 33
IFRS 9 [member] | Non-current other investments [member] | Financial assets held at fair value through profit or loss [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Available for sale |  |  |  |  | 47
Impact of adopting IFRS 9 [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Expected credit loss provision | (7) | (7) |  |  | (7)
Cumulative cost of hedging |  |  |  |  | $ 176
Increase (decrease) due to application of IFRS 15 [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Impact of applying this change would have been to increased/(reduce) revenue |  | 522 | 509 | 395 |
Impact of applying this change would have been to increased/(reduce) expenses |  | 522 | 509 | 395 |
Impact on profit after tax |  | $ 0 | $ 0 | $ 0 |
Impact on the basic and diluted earnings per ordinary share |  | $ 0 | $ 0 | $ 0 |
Increase (decrease) due to application of IFRS 16 [member] |  |  |  |  |
Disclosure of initial application of standards or interpretations [line items] |  |  |  |  |
Increase in lease liabilities | 2,300 | $ 2,300 |  |  |
Increase in right of use assets | 2,200 | $ 2,200 |  |  |
Net adjustments to other assets and liabilities | $ 100 |  |  |  |
Weighted average incremental borrowing rate | 2.10% | 2.10% |  |  |

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