Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies Significant Accounting Policies (Tables)

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Significant Accounting Policies Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
Net Gains (Losses) on Sale and Disposal of Property [Table Text Block] The amount of gains and losses for the years ended December 31 were as follows:
(in millions) 2021 2020 2019
Gains on the sale of property $ 1.4  $ 0.7  $ 1.8 
Losses on the sale and disposal of property (0.9) (0.5) (2.4)
Net gains (losses) on sale and disposal of property $ 0.5  $ 0.2  $ (0.6)