Leasing (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Components of lease cost [Table Text Block]

Lease cost consists of the following:

	Twelve Months Ended
	December 31,
	2019
	(in millions)
Finance lease cost
Amortization of right-of-use assets	$	1.0
Interest on lease liabilities	0.3
Total finance lease cost	1.3
Operating lease cost	28.9
Short-term lease cost	5.9
Variable lease cost	7.2
Total lease cost	$	43.3

Supplemental lease information [Table Text Block]

The following table summarizes additional information related to our lease agreements.

	Twelve Months Ended
	December 31,
	2019
	(in millions, except lease term and rate)
Cash paid for amounts included in measurement of lease liabilities
Operating cash flows from finance leases	$	0.3
Operating cash flows from operating leases	29.0
Financing cash flows from finance leases	1.0
Weighted-average remaining lease term - finance leases	2.8 years
Weighted-average remaining lease term - operating leases	9.2 years
Weighted-average discount rate - finance leases	5.1		%
Weighted-average discount rate - operating leases	6.1		%

Future minimum lease payments [Table Text Block]

Future undiscounted minimum payments under non-cancelable leases are as follows:

	Finance Leases			Operating Leases
	(in millions)
2020	$	3.2		$	28.2
2021	2.7			21.9
2022	1.7			17.9
2023	0.2			13.4
2024	—			10.7
Thereafter	—			59.3
Total future undiscounted minimum lease payments	7.8			151.4
Less: Impact of discounting	(0.5		)	(32.9		)
Total	$	7.3		$	118.5

Right of use assets and lease liabilities [Table Text Block]

The right-of-use assets and lease liabilities recorded on our Consolidated Balance Sheet as of December 31, 2019 are as follows:

	Finance Leases		Operating Leases
	(in millions)
Property, plant and equipment, net	$	7.3	$	—
Other assets and deferred charges	—		118.5
Total	$	7.3	$	118.5
Accrued expenses and other	$	3.3	$	21.8
Postretirement benefits and other long-term liabilities	4.0		96.7
Total	$	7.3	$	118.5