Statement Of Financial Position [Abstract]
| Concept |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
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 2021-03-31 |
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 2020-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — |
415,000,000
USD
|
— | — | — | — |
469,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — |
5,737,000,000
USD
|
— | — | — | — |
5,261,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — |
2,214,000,000
USD
|
— | — | — | — |
1,966,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — | — |
133,000,000
USD
|
— | — | — | — |
160,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — |
46,000,000
USD
|
— | — | — | — |
86,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — |
81,000,000
USD
|
— | — | — | — |
223,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — |
9,221,000,000
USD
|
— | — | — | — |
8,640,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — |
1,409,000,000
USD
|
— | — | — | — |
1,197,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — |
37,000,000
USD
|
— | — | — | — |
34,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — | — |
7,000,000
USD
|
— | — | — | — |
20,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
179,000,000
USD
|
— | — | — | — |
180,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — | — |
1,632,000,000
USD
|
— | — | — | — |
1,431,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — | — |
41,000,000
USD
|
— | — | — | — |
—
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — | — |
1,673,000,000
USD
|
— | — | — | — |
1,431,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — |
96,000,000
USD
|
— | — | — | — |
96,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — |
20,157,000,000
USD
|
— | — | — | — |
19,207,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — |
1,780,000,000
USD
|
— | — | — | — |
1,756,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — |
18,064,000,000
USD
|
— | — | — | — |
17,978,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — |
3,969,000,000
USD
|
— | — | — | — |
3,081,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — |
38,000,000
USD
|
— | — | — | — |
38,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
3,969,000,000
USD
|
96,000,000
USD
|
1,780,000,000
USD
|
20,157,000,000
USD
|
4,007,000,000
USD
|
38,000,000
USD
|
18,064,000,000
USD
|
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
|
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
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — |
4,000,000
USD
|
— | — | — | — |
—
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current payables | — | — | — | — |
248,000,000
USD
|
— | — | — | — |
159,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — |
353,000,000
USD
|
— | — | — | — |
361,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — |
226,000,000
USD
|
— | — | — | — |
279,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — |
4,922,000,000
USD
|
— | — | — | — |
4,536,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — |
33,000,000
USD
|
— | — | — | — |
27,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — |
1,744,000,000
USD
|
— | — | — | — |
1,543,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — |
109,000,000
USD
|
— | — | — | — |
176,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — | — |
22,000,000
USD
|
— | — | — | — |
15,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — |
1,965,000,000
USD
|
— | — | — | — |
2,416,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — |