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Compensation Plans (Schedule of Outstanding Deferred Share Units) (Details) - Deferred Share Units [Member] - shares shares in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
United States Of America Dollars [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested and Outstanding, Beginning of Year	24	18
Granted	5	5
Converted from Bonus Awards	0	0
Units, in Lieu of Dividends	0	1
Redeemed	(2)	0
Vested and Outstanding, End of Year	27	24
Canadian Dollar [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested and Outstanding, Beginning of Year	146	147
Granted	2	2
Converted from Bonus Awards	0	0
Units, in Lieu of Dividends	4	4
Redeemed	(34)	(7)
Vested and Outstanding, End of Year	118	146

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