Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2025-03-31 |
As at 2024-03-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Property, plant and equipment |
350,000,000
USD
|
379,000,000
USD
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Intangible assets other than goodwill |
2,855,000,000
USD
|
2,437,000,000
USD
|
| Goodwill |
6,654,000,000
USD
|
5,962,000,000
USD
|
| Investments accounted for using equity method [abstract] | ||
| Investments in associates accounted for using equity method |
13,000,000
USD
|
11,000,000
USD
|
| Trade and other non-current receivables [abstract] | ||
| Trade and other non-current receivables |
226,000,000
USD
|
196,000,000
USD
|
| Miscellaneous non-current assets [abstract] | ||
| Non-current net defined benefit asset |
202,000,000
USD
|
186,000,000
USD
|
| Trade and other current receivables [abstract] | ||
| Trade and other current receivables |
1,684,000,000
USD
|
1,660,000,000
USD
|
| Categories of non-current financial assets [abstract] | ||
| Non-current financial assets at fair value through other comprehensive income [abstract] | ||
| Non-current financial assets measured at fair value through other comprehensive income |
221,000,000
USD
|
234,000,000
USD
|
| Categories of current financial assets [abstract] | ||
| Current financial assets at fair value through other comprehensive income [abstract] | ||
| Current financial assets measured at fair value through other comprehensive income |
1,000,000
USD
|
—
USD
|
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
368,000,000
USD
|
312,000,000
USD
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
4,242,000,000
USD
|
3,494,000,000
USD
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current borrowings and current portion of non-current borrowings |
774,000,000
USD
|
772,000,000
USD
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | ||
| Trade and other non-current payables [abstract] | ||
| Trade and other non-current payables |
172,000,000
USD
|
190,000,000
USD
|
| Trade and other current payables [abstract] | ||
| Trade and other current payables |
2,127,000,000
USD
|
2,036,000,000
USD
|
| Miscellaneous non-current liabilities [abstract] | ||
| Non-current net defined benefit liability |
37,000,000
USD
|
39,000,000
USD
|
| Issued capital [abstract] | ||
| Issued capital |
97,000,000
USD
|
97,000,000
USD
|
| Retained earnings [abstract] | ||
| Retained earnings |
21,797,000,000
USD
|
21,155,000,000
USD
|
| Net assets (liabilities) [abstract] | ||
| Assets (liabilities) |
5,090,000,000
USD
|
4,669,000,000
USD
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
2,141,000,000
USD
|
2,078,000,000
USD
|
| Current liabilities |
3,002,000,000
USD
|
2,963,000,000
USD
|
| Current assets (liabilities) |
861,000,000
USD
|
885,000,000
USD
|
| Assets less current liabilities [abstract] | ||
| Assets less current liabilities |
9,884,000,000
USD
|
8,749,000,000
USD
|