Statement Of Changes In Equity [Abstract]
| Concept |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity | — |
4,851,800,000
USD
|
1,540,100,000
USD
|
1,131,700,000
USD
|
5,600,000
USD
|
— |
338,400,000
USD
|
6,316,300,000
USD
|
— | — |
2,671,800,000
USD
|
— | — | — | — |
1,357,500,000
USD
|
— |
1,461,200,000
USD
|
237,800,000
USD
|
— | — |
2,818,700,000
USD
|
6,316,300,000
USD
|
4,726,600,000
USD
|
— |
5,600,000
USD
|
— | — |
249,000,000
USD
|
5,600,000
USD
|
6,316,300,000
USD
|
5,065,600,000
USD
|
1,477,100,000
USD
|
469,800,000
USD
|
1,007,300,000
USD
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
94,100,000
USD
|
— | — | — | — |
177,700,000
USD
|
— | — |
-
USD
|
-
USD
|
— |
83,600,000
USD
|
-
USD
|
177,700,000
USD
|
-
USD
|
— |
334,700,000
USD
|
— | — |
334,700,000
USD
|
34,500,000
USD
|
— | — | — |
300,200,000
USD
|
— |
-
USD
|
-
USD
|
— | — | — | — | — | — | — |
| Other comprehensive income |
143,100,000
USD
|
— | — | — | — |
-
USD
|
— | — |
104,400,000
USD
|
-
USD
|
— |
38,700,000
USD
|
-
USD
|
104,400,000
USD
|
4,800,000
USD
|
— |
4,800,000
USD
|
— | — |
-
USD
|
3,600,000
USD
|
— | — | — |
1,200,000
USD
|
— |
-
USD
|
-
USD
|
— | — | — | — | — | — | — |
| Comprehensive income |
237,200,000
USD
|
— | — | — | — |
177,700,000
USD
|
— | — |
104,400,000
USD
|
-
USD
|
— |
44,900,000
USD
|
-
USD
|
282,100,000
USD
|
4,800,000
USD
|
— |
329,900,000
USD
|
— | — |
334,700,000
USD
|
30,900,000
USD
|
— | — | — |
299,000,000
USD
|
— |
-
USD
|
-
USD
|
— | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity |
17,400,000
USD
|
— | — | — | — |
-
USD
|
— | — |
-
USD
|
-
USD
|
— |
17,400,000
USD
|
-
USD
|
-
USD
|
-
USD
|
— |
-
USD
|
— | — |
-
USD
|
10,500,000
USD
|
— | — | — |
10,500,000
USD
|
— |
-
USD
|
-
USD
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
8,000,000
USD
|
— | — | — | — |
8,000,000
USD
|
— | — |
-
USD
|
-
USD
|
— |
-
USD
|
-
USD
|
8,000,000
USD
|
-
USD
|
— |
6,600,000
USD
|
— | — |
6,600,000
USD
|
-
USD
|
— | — | — |
6,600,000
USD
|
— |
-
USD
|
-
USD
|
— | — | — | — | — | — | — |