Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2022-01-01 to 2022-06-30 |
2022-04-01 to 2022-06-30 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-06-30 |
2021-04-01 to 2021-06-30 |
|---|---|---|---|---|---|
| Statement of changes in net assets available for benefits [abstract] | |||||
| Reconciliation of changes in net assets available for benefits [abstract] | |||||
| Changes in net assets available for benefits [abstract] | |||||
| Tax expense (income) |
335,000,000
USD
|
164,000,000
USD
|
697,000,000
USD
|
302,000,000
USD
|
152,000,000
USD
|