Statement Of Financial Position [Abstract]
| Concept |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2020-04-01 |
As at 2020-04-01 |
As at 2020-04-01 |
As at 2020-04-01 |
As at 2020-04-01 |
As at 2020-04-01 |
As at 2020-04-01 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2019-04-01 |
As at 2019-04-01 |
As at 2019-04-01 |
As at 2019-04-01 |
As at 2019-04-01 |
As at 2019-04-01 |
As at 2019-04-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||
| Property, plant and equipment | — | — |
469,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
502,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — |
5,261,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,543,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
1,966,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,583,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — |
160,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
164,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — |
86,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
107,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — |
223,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
223,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — |
8,640,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
7,499,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||
| Trade and other current receivables | — | — |
1,197,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,078,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — |
34,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
28,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — |
20,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
17,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
180,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
277,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current assets | — | — |
1,431,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,400,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||
| Issued capital | — | — |
96,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
96,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — |
19,207,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
18,826,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Share premium | — | — |
1,756,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,574,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — |
3,081,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,275,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — |
38,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
19,207,000,000
USD
|
17,978,000,000
USD
|
3,119,000,000
USD
|
96,000,000
USD
|
1,756,000,000
USD
|
38,000,000
USD
|
3,081,000,000
USD
|
1,574,000,000
USD
|
96,000,000
USD
|
18,221,000,000
USD
|
6,000,000
USD
|
2,275,000,000
USD
|
18,826,000,000
USD
|
2,281,000,000
USD
|
6,000,000
USD
|
2,275,000,000
USD
|
18,221,000,000
USD
|
2,281,000,000
USD
|
1,574,000,000
USD
|
96,000,000
USD
|
18,826,000,000
USD
|
96,000,000
USD
|
18,718,000,000
USD
|
1,559,000,000
USD
|
2,480,000,000
USD
|
17,893,000,000
USD
|
14,000,000
USD
|
2,494,000,000
USD
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||
| Trade and other non-current payables | — | — |
159,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
121,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — |
361,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
202,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — |
279,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
107,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — |
4,536,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,394,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||||||
| Current provisions | — | — |
27,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
48,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — |
1,543,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,430,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — |
176,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
225,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — |
15,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
23,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — |
2,416,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,224,000,000
USD
|
— | — | — | — | — | — | — | — | — | — |