Statement Of Changes In Equity [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||
| Increase (decrease) through exercise of options, equity | — | — |
11,000,000
USD
|
— |
11,000,000
USD
|
11,000,000
USD
|
— | — | — |
13,000,000
USD
|
13,000,000
USD
|
13,000,000
USD
|
6,000,000
USD
|
— |
6,000,000
USD
|
6,000,000
USD
|
— | — |
| Decrease (increase) through tax on share-based payment transactions, equity | — | — |
3,000,000
USD
|
— |
3,000,000
USD
|
3,000,000
USD
|
— | — | — |
24,000,000
USD
|
24,000,000
USD
|
24,000,000
USD
|
1,000,000
USD
|
— |
1,000,000
USD
|
1,000,000
USD
|
— | — |
| Purchase of treasury shares |
1,170,000,000
USD
|
— |
1,153,000,000
USD
|
— |
1,153,000,000
USD
|
17,000,000
USD
|
880,000,000
USD
|
— | — |
1,161,000,000
USD
|
1,161,000,000
USD
|
281,000,000
USD
|
— | — |
220,000,000
USD
|
220,000,000
USD
|
220,000,000
USD
|
— |
| Cancellation of treasury shares |
879,000,000
USD
|
7,000,000
USD
|
— |
7,000,000
USD
|
— |
879,000,000
USD
|
951,000,000
USD
|
8,000,000
USD
|
8,000,000
USD
|
— | — |
951,000,000
USD
|
150,000,000
USD
|
2,000,000
USD
|
— | — |
150,000,000
USD
|
2,000,000
USD
|