Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
2,121,000,000
USD
|
2,681,000,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
5,207,000,000
USD
|
6,392,000,000
USD
|
— |
| Goodwill |
1 083,6
USD
|
1 186,5
USD
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
281,000,000
USD
|
286,000,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
3,507,000,000
USD
|
3,250,000,000
USD
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets |
178,000,000
USD
|
136,000,000
USD
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
3,192,000,000
USD
|
3,854,000,000
USD
|
6,105,000,000
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 |
-
USD
|
927,000,000
USD
|
— |
| Miscellaneous current assets [abstract] | |||
| Other current assets |
1,051,000,000
USD
|
920,000,000
USD
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
1 218,1
USD
|
1 330,3
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
903,000,000
USD
|
586,000,000
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 current payables [abstract] | |||
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities [abstract] | |||
| Current contract liabilities [abstract] | |||
| Current contract liabilities |
271,000,000
USD
|
195,000,000
USD
|
— |
| Accruals classified as current | — | — | — |
| Short-term employee benefits accruals |
1,054,000,000
USD
|
1,066,000,000
USD
|
— |
| Trade and other current payables |
764,000,000
USD
|
967,000,000
USD
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
2,182,000,000
USD
|
2,784,000,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
87,000,000
USD
|
87,000,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
5,700,000,000
USD
|
4,806,000,000
USD
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of cash flow hedges |
8,000,000
USD
|
7,000,000
USD
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
4,641,000,000
USD
|
1 687,1
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
2 924,6
USD
|
3 377,5
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1 042,7
USD
|
1 231,2
USD
|
— |
| Current liabilities |
5,852,000,000
USD
|
7,169,000,000
USD
|
— |
| Assets less current liabilities [abstract] |