v3.26.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO SHAREHOLDER (Tables)
12 Months Ended
Dec. 31, 2025
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO SHAREHOLDER  
Schedule of accumulated other comprehensive income (loss) attributable to shareholder

Defined

  ​ ​ ​

Cash flow hedges1

  ​ ​ ​

benefit plans

  ​ ​ ​

Total

Balance as of December 31, 2022

$

(26.3)

$

9.6

$

(16.7)

Other comprehensive income

 

5.6

4.7

10.3

Balance as of December 31, 2023

(20.7)

14.3

(6.4)

Other comprehensive (loss) income

 

(71.8)

16.8

(55.0)

Balance as of December 31, 2024

(92.5)

31.1

(61.4)

Other comprehensive income

67.5

17.6

85.1

Balance as of December 31, 2025

$

(25.0)

$

48.7

$

23.7

1No significant amount is expected to be reclassified in income over the next 12 months in connection with derivatives designated as cash flow hedges. The balance is expected to reverse over a 9-year period.