Statement Of Changes In Equity [Abstract]
| Concept |
As at 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 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||
| Equity |
34,024,000,000
USD
|
— | — | — | — | — |
3,292,000,000
USD
|
589,000,000
USD
|
6,663,000,000
USD
|
42,411,000,000
USD
|
6,272,000,000
USD
|
— |
12,659,000,000
USD
|
27,361,000,000
USD
|
— | — | — | — | — |
6,141,000,000
USD
|
41,716,000,000
USD
|
651,000,000
USD
|
— | — | — |
34,770,000,000
USD
|
— | — |
3,295,000,000
USD
|
— |
27,825,000,000
USD
|
— |
11,696,000,000
USD
|
6,945,000,000
USD
|
— | — |
37,192,000,000
USD
|
6,942,000,000
USD
|
25,824,000,000
USD
|
5,107,000,000
USD
|
6,107,000,000
USD
|
11,004,000,000
USD
|
636,000,000
USD
|
32,766,000,000
USD
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
—
USD
|
—
USD
|
6,024,000,000
USD
|
4,514,000,000
USD
|
1,510,000,000
USD
|
— | — | — | — | — |
—
USD
|
— | — |
4,514,000,000
USD
|
—
USD
|
1,629,000,000
USD
|
7,653,000,000
USD
|
3,137,000,000
USD
|
— | — | — |
—
USD
|
—
USD
|
8,562,000,000
USD
|
— |
306,000,000
USD
|
12,005,000,000
USD
|
— |
—
USD
|
— |
—
USD
|
— | — |
11,699,000,000
USD
|
8,562,000,000
USD
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — |
—
USD
|
49,000,000
USD
|
1,420,000,000
USD
|
183,000,000
USD
|
225,000,000
USD
|
— | — | — | — | — |
—
USD
|
— | — |
1,195,000,000
USD
|
963,000,000
USD
|
— | — |
267,000,000
USD
|
— | — | — |
—
USD
|
8,000,000
USD
|
619,000,000
USD
|
— | — | — | — |
692,000,000
USD
|
— |
—
USD
|
— | — |
886,000,000
USD
|
81,000,000
USD
|
— | — | — | — | — | — | — | — |
| Comprehensive income | — | — | — |
4,604,000,000
USD
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
10,813,000,000
USD
|
— | — | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — |
—
USD
|
—
USD
|
5,115,000,000
USD
|
3,549,000,000
USD
|
1,566,000,000
USD
|
— | — | — | — | — |
—
USD
|
— | — |
3,549,000,000
USD
|
—
USD
|
— | — |
2,837,000,000
USD
|
— | — | — |
—
USD
|
—
USD
|
4,047,000,000
USD
|
— | — | — | — |
—
USD
|
— |
—
USD
|
— | — |
6,884,000,000
USD
|
4,047,000,000
USD
|
— | — | — | — | — | — | — | — |
| Decrease through other distributions to owners, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
106,000,000
USD
|
— | — | — |
—
USD
|
—
USD
|
719,000,000
USD
|
— | — | — | — |
—
USD
|
— |
1,800,000,000
USD
|
— | — |
825,000,000
USD
|
1,081,000,000
USD
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
1,000,000
USD
|
17,000,000
USD
|
46,000,000
USD
|
28,000,000
USD
|
—
USD
|
— | — | — | — | — |
—
USD
|
— | — |
46,000,000
USD
|
—
USD
|
— | — |
16,000,000
USD
|
— | — | — |
37,000,000
USD
|
4,000,000
USD
|
37,000,000
USD
|
— | — | — | — |
—
USD
|
— |
—
USD
|
— | — |
53,000,000
USD
|
70,000,000
USD
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through treasury share transactions, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
—
USD
|
— | — | — |
—
USD
|
—
USD
|
1,000,000,000
USD
|
— | — | — | — |
—
USD
|
— |
—
USD
|
— | — |
1,000,000,000
USD
|
1,000,000,000
USD
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
89,000,000
USD
|
— | — | — |
—
USD
|
—
USD
|
73,000,000
USD
|
— | — | — | — |
—
USD
|
— |
—
USD
|
— | — |
16,000,000
USD
|
73,000,000
USD
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
130,000,000
USD
|
1,000,000
USD
|
189,000,000
USD
|
59,000,000
USD
|
1,000,000
USD
|
— | — | — | — | — |
—
USD
|
— | — |
188,000,000
USD
|
—
USD
|
— | — |
3,000,000
USD
|
— | — | — |
71,000,000
USD
|
15,000,000
USD
|
66,000,000
USD
|
— | — | — | — |
—
USD
|
— |
—
USD
|
— | — |
63,000,000
USD
|
10,000,000
USD
|
— | — | — | — | — | — | — | — |