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Capital Disclosures - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2021 | Dec. 31, 2020
Disclosure of objectives, policies and processes for managing capital [line items] |  |
Debt to book capitalization | 27.00% | 40.00%
Bottom of range |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |
Debt to book capitalization | 25.00% |
Top of range |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |
Debt to book capitalization | 45.00% |
Debt to book capitalization ratio | 65.00% |

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