Statement Of Changes In Equity [Abstract]
| Concept |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 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 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||
| Dividends recognised as distributions to non-controlling interests |
-
USD
|
-
USD
|
49,200,000
USD
|
49,200,000
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
143,300,000
USD
|
143,300,000
USD
|
-
USD
|
| Increase (decrease) through acquisition of subsidiary, equity |
48,300,000
USD
|
-
USD
|
11,300,000
USD
|
59,600,000
USD
|
-
USD
|
48,300,000
USD
|
-
USD
|
-
USD
|
-
USD
|
674,800,000
USD
|
674,800,000
USD
|
1,768,100,000
USD
|
1,093,300,000
USD
|
-
USD
|
| Purchase of treasury shares | — | — | — | — | — | — | — |
1,300,000
USD
|
-
USD
|
1,300,000
USD
|
-
USD
|
1,300,000
USD
|
-
USD
|
-
USD
|
| Sale or issue of treasury shares |
3,800,000
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
-
USD
|
3,800,000
USD
|
7,700,000
USD
|
-
USD
|
-
USD
|
7,700,000
USD
|
-
USD
|
-
USD
|
-
USD
|