Allowance for Credit Losses (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($) qtr	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) qtr	Jun. 30, 2025 USD ($)	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Receivables [Abstract]
Time period used for projecting future conditions to estimate credit losses			2 years
Historical loss experiences period, number of quarters | qtr	4		4
Provision for (release of) credit losses	$ (5.3)	$ 15.6	$ (8.3)	$ 16.8
Other financial assets, allowance for credit loss	$ 0.9	$ 1.1	$ 0.9	$ 1.1	$ 0.9	$ 1.4	$ 0.7	$ 1.0