Statement Of Comprehensive Income [Abstract]
| Concept |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
631,000,000
USD
|
124,000,000
USD
|
631,000,000
USD
|
–
USD
|
–
USD
|
–
USD
|
755,000,000
USD
|
–
USD
|
339,000,000
USD
|
415,000,000
USD
|
–
USD
|
–
USD
|
76,000,000
USD
|
339,000,000
USD
|
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans | — | — | — | — | — | — |
0
USD
|
— | — |
0
USD
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, before tax | — | — | — | — | — | — |
4,000,000
USD
|
— | — |
147,000,000
USD
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — | — | — | — | — | — |
0
USD
|
— | — |
0
USD
|
— | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||
| Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income | — | — | — | — | — | — |
3,000,000
USD
|
— | — |
9,000,000
USD
|
— | — | — | — |
| Other comprehensive income |
12,000,000
USD
|
2,000,000
USD
|
0
USD
|
–
USD
|
12,000,000
USD
|
–
USD
|
14,000,000
USD
|
–
USD
|
0
USD
|
149,000,000
USD
|
140,000,000
USD
|
–
USD
|
9,000,000
USD
|
140,000,000
USD
|
| Comprehensive income |
619,000,000
USD
|
122,000,000
USD
|
631,000,000
USD
|
–
USD
|
12,000,000
USD
|
–
USD
|
741,000,000
USD
|
–
USD
|
339,000,000
USD
|
266,000,000
USD
|
140,000,000
USD
|
–
USD
|
67,000,000
USD
|
199,000,000
USD
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — |
619,000,000
USD
|
— | — |
199,000,000
USD
|
— | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — |
122,000,000
USD
|
— | — |
67,000,000
USD
|
— | — | — | — |