Deferred Tax Balances - Summary of Composition of Unrecognised Deferred Tax Assets and Liabilities (Parenthetical) (Detail) - USD ($)
$ in Millions |
Jun. 30, 2021 |
Jun. 30, 2020 |
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Income and capital tax losses with a tax benefit, which are not recognised as deferred tax assets |
$ 3,569
|
$ 2,405
|
| Tax credits, which are not recognised as deferred tax assets |
2,375
|
1,683
|
| Gross amount of income tax losses not recognised |
9,718
|
8,559
|
| Gross amount of tax losses not recognized |
13,956
|
12,709
|
| Tax effect of total losses not recognised |
3,569
|
2,405
|
| Due not later than one year [member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Gross amount of income tax losses not recognised |
13
|
474
|
| Gross amount of capital tax losses not recognised |
0
|
0
|
| Later than one year and not later than two years [member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Gross amount of income tax losses not recognised |
5
|
240
|
| Later than two years and not later than five years [member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Gross amount of income tax losses not recognised |
105
|
2,525
|
| Gross amount of capital tax losses not recognised |
0
|
0
|
| Later than five years and not later than 10 years [member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Gross amount of income tax losses not recognised |
1,449
|
679
|
| Later than 10 years and not later than 20 years [member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Tax credits, which are not recognised as deferred tax assets |
570
|
|
| Gross amount of income tax losses not recognised |
3,347
|
2,379
|
| Unlimited [member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Gross amount of income tax losses not recognised |
4,799
|
2,262
|
| Gross amount of capital tax losses not recognised |
4,238
|
$ 4,150
|
| Not Later than 10 year[member] |
|
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
|
|
| Tax credits, which are not recognised as deferred tax assets |
$ 1,805
|
|