Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
6,244,300,000
USD
|
6,570,600,000
USD
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
486,500,000
USD
|
599,800,000
USD
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
468,700,000
USD
|
506,900,000
USD
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
3,500,000
USD
|
4,100,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
600,900,000
USD
|
508,400,000
USD
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through other comprehensive income [abstract] | |||
| Non-current financial assets at fair value through other comprehensive income |
30,000,000
USD
|
33,400,000
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
293,800,000
USD
|
308,700,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
686,300,000
USD
|
600,500,000
USD
|
460,700,000
USD
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
4,226,900,000
USD
|
4,392,700,000
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
189,700,000
USD
|
269,600,000
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 |
25,700,000
USD
|
30,700,000
USD
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
1,003,600,000
USD
|
991,300,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
5,600,000
USD
|
5,600,000
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
4,851,800,000
USD
|
4,726,600,000
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
9,097,000,000
USD
|
9,419,600,000
USD
|
— |
| Liabilities |
6,425,200,000
USD
|
6,600,900,000
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1,583,800,000
USD
|
1,420,800,000
USD
|
— |
| Current liabilities |
1,405,500,000
USD
|
1,440,200,000
USD
|
— |
| Assets less current liabilities [abstract] |