Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Income taxes paid (refund), classified as operating activities | — |
16,000,000
USD
|
— |
29,000,000
USD
|
— |
| Cash flows from (used in) operating activities | — |
3,455,000,000
USD
|
— |
3,367,000,000
USD
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
49,000,000
USD
|
— |
893,000,000
USD
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
364,000,000
USD
|
— |
20,000,000
USD
|
— |
| Cash flows from (used in) investing activities | — |
1,989,000,000
USD
|
— |
1,388,000,000
USD
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from borrowings, classified as financing activities | — |
107,000,000
USD
|
— |
1 162,3
USD
|
— |
| Payments of lease liabilities, classified as financing activities | — |
484,000,000
USD
|
— |
570,000,000
USD
|
— |
| Interest paid, classified as financing activities | — |
924,000,000
USD
|
— |
898,000,000
USD
|
— |
| Cash flows from (used in) financing activities | — |
1,291,000,000
USD
|
— |
2,176,000,000
USD
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
168,000,000
USD
|
— |
105,000,000
USD
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
212,000,000
USD
|
— |
662,000,000
USD
|
— |
| Cash and cash equivalents |
2,980,000,000
USD
|
— |
3,192,000,000
USD
|
— |
3,854,000,000
USD
|