Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2026

Earnings Per Share [Abstract]

Schedule of Net Earnings to Common Shareholders


			2026									2025
			Net Earnings			Weighted						Net Earnings			Weighted
			to Common			Average						to Common			Average
			Shareholders			Shares			EPS			Shareholders			Shares			EPS
			($ millions)			(# millions)			($)			($ millions)			(# millions)			($)
Quarter ended June 30
Basic EPS			396			510.0			0.78			384			502.6			0.76
Potential dilutive effect of stock-based compensation			—			0.2						—			0.3
Diluted EPS			396			510.2			0.78			384			502.9			0.76

Year-to-date June 30
Basic EPS			897			509.1			1.76			883			501.5			1.76
Potential dilutive effect of stock-based compensation			—			0.2						—			0.3
Diluted EPS			897			509.3			1.76			883			501.8			1.76