Capital structure financial policies (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
Feb. 03, 2021 |
Dec. 22, 2022 |
Dec. 20, 2022 |
Dec. 31, 2021 |
|---|---|---|---|---|
| Disclosure of objectives, policies and processes for managing capital [line items] | ||||
| Common shares issued (in shares) | 21.0 | |||
| Share issue price (in dollars per share) | $ 25.00 | |||
| Credit facility | ||||
| Disclosure of objectives, policies and processes for managing capital [line items] | ||||
| Maximum aggregate amount of credit facility | $ 2,000 | $ 2,000 | $ 1,657 | |
| Revolving component | ||||
| Disclosure of objectives, policies and processes for managing capital [line items] | ||||
| Maximum aggregate amount of credit facility | 800 | 800 | 850 | |
| Term loan components | ||||
| Disclosure of objectives, policies and processes for managing capital [line items] | ||||
| Maximum aggregate amount of credit facility | $ 1,200 | $ 1,200 | $ 807 |