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 |
2019-12-31 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
As at 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-01-01 |
As at 2019-12-31 |
As at 2019-12-31 |
2018-12-31 to 2019-12-31 |
2018-12-31 to 2019-12-31 |
2018-12-31 to 2019-12-31 |
2018-12-31 to 2019-12-31 |
2018-12-31 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 |
2018-12-31 to 2019-12-31 |
As at 2019-12-31 |
2018-12-31 to 2019-12-31 |
2018-12-31 to 2019-12-31 |
As at 2019-12-31 |
2018-12-31 to 2019-12-31 |
2018-12-31 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity | — |
4,806,000,000
USD
|
449,000,000
USD
|
7,000,000
USD
|
1 687,1
USD
|
— |
1 119,7
USD
|
87,000,000
USD
|
— | — | — | — |
201,000,000
USD
|
— | — | — |
1 164,6
USD
|
— | — |
373,000,000
USD
|
374,000,000
USD
|
1 531,1
USD
|
1 561,7
USD
|
457,000,000
USD
|
— | — | — | — | — |
1 607,4
USD
|
1 531,1
USD
|
3 184,7
USD
|
— |
201,000,000
USD
|
— |
7,000,000
USD
|
— | — |
87,000,000
USD
|
— | — |
235,000,000
USD
|
563,000,000
USD
|
279,000,000
USD
|
201,000,000
USD
|
551,000,000
USD
|
1 631,5
USD
|
1 674,1
USD
|
3 184,6
USD
|
9,000,000
USD
|
87,000,000
USD
|
426,000,000
USD
|
1 457,8
USD
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
4,381,000,000
USD
|
— | — | — | — |
USD
|
— | — |
USD
|
USD
|
USD
|
4,418,000,000
USD
|
— |
4,381,000,000
USD
|
37,000,000
USD
|
USD
|
— |
4,418,000,000
USD
|
USD
|
— | — | — | — | — |
USD
|
USD
|
USD
|
USD
|
USD
|
— | — | — |
615,000,000
USD
|
— |
615,000,000
USD
|
— |
76,000,000
USD
|
USD
|
— |
691,000,000
USD
|
691,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other comprehensive income |
135,000,000
USD
|
— | — | — | — |
-
USD
|
— | — |
176,000,000
USD
|
-
USD
|
-
USD
|
68,000,000
USD
|
— |
135,000,000
USD
|
27,000,000
USD
|
-
USD
|
— |
108,000,000
USD
|
-
USD
|
— | — | — | — | — |
-
USD
|
-
USD
|
2,000,000
USD
|
12,000,000
USD
|
-
USD
|
— | — | — |
88,000,000
USD
|
— |
88,000,000
USD
|
— |
7,000,000
USD
|
-
USD
|
— |
81,000,000
USD
|
71,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
4,246,000,000
USD
|
— | — | — | — |
-
USD
|
— | — |
176,000,000
USD
|
-
USD
|
-
USD
|
4,486,000,000
USD
|
— |
4,246,000,000
USD
|
64,000,000
USD
|
-
USD
|
— |
4,310,000,000
USD
|
-
USD
|
— | — | — | — | — |
-
USD
|
-
USD
|
2,000,000
USD
|
12,000,000
USD
|
-
USD
|
— | — | — |
703,000,000
USD
|
— |
703,000,000
USD
|
— |
69,000,000
USD
|
-
USD
|
— |
772,000,000
USD
|
762,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — | — | — |
USD
|
— | — |
USD
|
USD
|
USD
|
-
USD
|
— |
72,000,000
USD
|
72,000,000
USD
|
-
USD
|
— |
USD
|
USD
|
— | — | — | — | — |
USD
|
USD
|
USD
|
USD
|
USD
|
— | — | — | — | — |
38,000,000
USD
|
— |
38,000,000
USD
|
USD
|
— |
USD
|
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — | — | — |
USD
|
— | — |
USD
|
USD
|
USD
|
37,000,000
USD
|
— |
37,000,000
USD
|
USD
|
USD
|
— |
37,000,000
USD
|
USD
|
— | — | — | — | — |
USD
|
1,000,000
USD
|
USD
|
USD
|
USD
|
— | — | — | — | — |
53,000,000
USD
|
— |
USD
|
USD
|
— |
53,000,000
USD
|
52,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — |