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] | |||||||||||||||||||||
| Right-of-use assets | — | — | — | — | — |
1,109,000,000
USD
|
— | — |
799,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — |
3,827,000,000
USD
|
— | — |
3,835,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — |
6,000,000
USD
|
— | — |
4,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
222,000,000
USD
|
— | — |
314,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, non-current | — | — | — | — | — |
22,000,000
USD
|
— | — |
33,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — |
7,000,000
USD
|
— | — |
17,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current non-financial assets | — | — | — | — | — |
134,000,000
USD
|
— | — |
112,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
8,367,000,000
USD
|
— | — |
8,087,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Current inventories | — | — | — | — | — |
3,000,000
USD
|
— | — |
7,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — | — | — |
123,000,000
USD
|
— | — |
113,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — | — | — |
124,000,000
USD
|
— | — |
66,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial assets | — | — | — | — | — |
215,000,000
USD
|
— | — |
147,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
638,000,000
USD
|
— | — |
813,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — | — | — |
–
USD
|
— | — |
31,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — |
1,997,000,000
USD
|
— | — |
1,905,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
10,364,000,000
USD
|
— | — |
9,992,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — |
3,420,000,000
USD
|
— | — |
3,420,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
3,436,000,000
USD
|
— | — |
2,975,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — |
3,354,000,000
USD
|
— | — |
2,990,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — |
3,502,000,000
USD
|
— | — |
3,405,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — |
147,000,000
USD
|
— | — |
52,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
2,412,000,000
USD
|
942,000,000
USD
|
3,502,000,000
USD
|
3,420,000,000
USD
|
3,436,000,000
USD
|
3,649,000,000
USD
|
147,000,000
USD
|
2,975,000,000
USD
|
3,353,000,000
USD
|
3,420,000,000
USD
|
52,000,000
USD
|
3,405,000,000
USD
|
594,000,000
USD
|
2,396,000,000
USD
|
107,000,000
USD
|
3,388,000,000
USD
|
2,252,000,000
USD
|
585,000,000
USD
|
3,281,000,000
USD
|
3,420,000,000
USD
|
2,805,000,000
USD
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — | — |
20,000,000
USD
|
— | — |
25,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — |
114,000,000
USD
|
— | — |
81,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — | — |
88,000,000
USD
|
— | — |
91,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current non-financial liabilities | — | — | — | — | — |
18,000,000
USD
|
— | — |
24,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
3,642,000,000
USD
|
— | — |
3,135,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — | — |
69,000,000
USD
|
— | — |
65,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — |
404,000,000
USD
|
— | — |
366,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — |
220,000,000
USD
|
— | — |
173,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial liabilities | — | — | — | — | — |
428,000,000
USD
|
— | — |
448,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial liabilities | — | — | — | — | — |
176,000,000
USD
|
— | — |
151,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale | — | — | — | — | — |
–
USD
|
— | — |
19,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
3,073,000,000
USD
|
— | — |
3,504,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
6,715,000,000
USD
|
— | — |
6,639,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |