Principal Accounting Policies and Related Financial Information (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Property, Plant and Equipment

The major classifications of property, equipment and software, including their respective expected useful lives, consisted of the following:

Asset type	Useful Life
Land	—
Land improvements	20 years
Buildings	20-40 years
Machinery and Equipment	3-18 years
Software	3-10 years

Property, plant and equipment consisted of the following:

	December 31,
(in Millions)	2021		2020
Land and land improvements	$	85.8	$	85.8
Buildings	84.4		83.0
Machinery and equipment	330.2		314.9
Construction in progress	420.5		284.0
Total cost	$	920.9	$	767.7
Accumulated depreciation	(243.0)		(222.4)
Property, plant and equipment, net	$	677.9	$	545.3