Segmented Information (Capital Expenditures by Segment) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Segment Reporting [Line Items] | ||||
| Capital Expenditures | $ 574 | $ 521 | $ 1,179 | $ 1,138 |
| Operating Segments [Member] | USA Operations [Member] | ||||
| Segment Reporting [Line Items] | ||||
| Capital Expenditures | 331 | 350 | 748 | 808 |
| Operating Segments [Member] | Canadian Operations [Member] | ||||
| Segment Reporting [Line Items] | ||||
| Capital Expenditures | 242 | 170 | 429 | 328 |
| Corporate & Other [Member] | ||||
| Segment Reporting [Line Items] | ||||
| Capital Expenditures | $ 1 | $ 1 | $ 2 | $ 2 |
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- Definition Amount of expenditure for addition to long-lived asset included in determination of segment asset by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Long-lived asset excludes financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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