CAPITAL STOCK (Tables)

3 Months Ended

Mar. 31, 2026

Share-Based Payment Arrangement [Abstract]

Activities with respect to our capital stock for the periods indicated are set forth below:


Number of shares (in millions)			Common Shares
Issued and outstanding at December 31, 2024			116.1
Issued from treasury to settle vested SBC			0.1
Cancelled under normal course issuer bids (NCIB)			(0.6)
Issued and outstanding at March 31, 2025			115.6

Issued and outstanding at December 31, 2025			114.9
Issued from treasury to settle vested SBC			0.2
Cancelled under NCIB			(0.1)
Issued and outstanding at March 31, 2026			115.0

Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award

Information regarding Common Shares purchases in Q1 2026 and Q1 2025, for cancellation and for SBC plan delivery obligations (including under ASPPs) is set forth below:


	Three months ended March 31
	2026		2025
Aggregate cost (including transaction fees and excluding share buyback taxes) of Common Shares repurchased for cancellation	$	20.0	$	75.0
Number of Common Shares repurchased for cancellation (in millions)	0.1		0.6
Weighted average price per share for repurchases	$	273.60	$	114.46
Aggregate cost (including transaction fees) of Common Shares repurchased for delivery under SBC plans	$	—	$	221.6
Number of Common Shares repurchased for delivery under SBC plans (in millions)(1)	—		1.7

(1) Consists entirely of SBC ASPP purchases through an independent broker.

Information regarding RSU, PSU and DSU grants to employees and directors, as applicable, for the periods indicated is set forth below (no stock options were granted in the periods below):


	Three months ended March 31
	2026		2025
RSUs Granted:
Number of awards (in millions)	0.2		0.2
Weighted average grant date fair value per unit	$	283.07	$	120.67

PSUs Granted:
Number of awards (in millions, representing 100% of target)	0.1		0.2
Weighted average grant date fair value per unit	$	325.13	$	147.23

DSUs Granted:
Number of awards (in millions)	0.001		0.004
Weighted average grant date fair value per unit	$	257.27	$	79.28

Schedule of Share-Based Payment Arrangement, Cost by Plan

Information regarding employee and director SBC expense and TRS FVAs (which represent changes in fair value of the TRS) for the periods indicated is set forth below:


	Three months ended March 31
	2026		2025
Employee SBC expense in cost of sales	$	13.6	$	10.1
Employee SBC expense in SG&A	16.9		15.9
Total employee SBC expense	$	30.5	$	26.0

TRS FVAs: losses in cost of sales	$	7.5	$	7.5
TRS FVAs: losses in SG&A	9.5		11.6

Total TRS FVAs: losses	$	17.0	$	19.1

Combined effect of employee SBC expense and TRS FVAs	$	47.5	$	45.1

Director SBC expense in SG&A(1)	$	0.6	$	0.6

(1) Expense consists of director compensation to be settled with Common Shares, or Common Shares and cash.