Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-03-31 |
As at 2021-03-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Construction in progress |
189,000,000
USD
|
166,000,000
USD
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Intangible assets under development |
2,000,000
USD
|
177,000,000
USD
|
| Goodwill |
3,827,000,000
USD
|
3,835,000,000
USD
|
| Investments accounted for using equity method [abstract] | ||
| Investments accounted for using equity method |
6,000,000
USD
|
4,000,000
USD
|
| Miscellaneous non-current assets [abstract] | ||
| Non-current derivative financial assets |
3,000,000
USD
|
6,000,000
USD
|
| Non-current investments other than investments accounted for using equity method |
0
USD
|
0
USD
|
| Trade and other current receivables [abstract] | ||
| Trade and other current receivables |
123,000,000
USD
|
113,000,000
USD
|
| Classes of current inventories [abstract] | ||
| Current inventories |
3,000,000
USD
|
7,000,000
USD
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| 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 [abstract] | ||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
–
USD
|
31,000,000
USD
|
| Miscellaneous current assets [abstract] | ||
| Current derivative financial assets |
3,000,000
USD
|
6,000,000
USD
|
| Current investments | — | — |
| Short-term deposits, not classified as cash equivalents |
378,000,000
USD
|
282,000,000
USD
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
1,486,000,000
USD
|
1,871,000,000
USD
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current borrowings |
786,000,000
USD
|
1,468,000,000
USD
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Trade and other current payables [abstract] | ||
| Trade and other current payables |
404,000,000
USD
|
366,000,000
USD
|
| Miscellaneous non-current liabilities [abstract] | ||
| Non-current derivative financial liabilities |
–
USD
|
6,000,000
USD
|
| Miscellaneous current liabilities [abstract] | ||
| Current derivative financial liabilities |
9,000,000
USD
|
7,000,000
USD
|
| Issued capital [abstract] | ||
| Issued capital |
3,420,000,000
USD
|
3,420,000,000
USD
|
| Retained earnings [abstract] | ||
| Retained earnings |
3,436,000,000
USD
|
2,975,000,000
USD
|
| Net assets (liabilities) [abstract] | ||
| Assets |
10,364,000,000
USD
|
9,992,000,000
USD
|
| Liabilities |
6,715,000,000
USD
|
6,639,000,000
USD
|
| Assets (liabilities) |
3,649,000,000
USD
|
3,353,000,000
USD
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
1,997,000,000
USD
|
1,905,000,000
USD
|
| Current liabilities |
3,073,000,000
USD
|
3,504,000,000
USD
|
| Current assets (liabilities) |
1,076,000,000
USD
|
1,599,000,000
USD
|
| Assets less current liabilities [abstract] |