Debt and Other Financing (Tables)

12 Months Ended

Dec. 31, 2020

Debt Disclosure [Abstract]

Schedule of Debt

Debt at December 31 consisted of the following:

	2020		2019
Debt maturing within one year:
Short term debt	$	28.0	$	1.8
Short term related party loans	1,008.6		—
Total	$	1,036.6	$	1.8
Long-term debt:
Finance lease liabilities	1.5		1.4
6.50% Senior Secured Notes, due August 2022	—		392.6
7.875% Senior Secured Notes, due August 2022	—		495.8
5.00% Notes, due March 2023	460.1		459.3
6.95% Notes, due March 2043	213.8		241.3
Total	675.4		1,590.4

Schedule of Carrying Values of Debt Instrument

At December 31, 2020 and 2019, the carrying values of our unsecured notes were comprised of the following:

	2020				2019
	Remaining Principal	Unamortized Discounts	Unamortized Debt Issuance Costs	Total	Remaining Principal	Unamortized Discounts	Unamortized Debt Issuance Costs	Total
5.00% Notes, due March 2023	461.9	(1.0)	(.8)	460.1	461.9	(1.5)	(1.1)	459.3
6.95% Notes, due March 2043	216.1	(.5)	(1.8)	213.8	243.9	(.5)	(2.1)	241.3

At December 31, 2020 and 2019, the carrying values of our senior secured notes were comprised of the following:

	2020				2019
	Remaining Principal	Unamortized Discounts	Unamortized Debt Issuance Costs	Total	Remaining Principal	Unamortized Discounts	Unamortized Debt Issuance Costs	Total
6.50% Senior Secured Notes, due August 2022 (2019 Notes)	—	—	—	—	400.0	(7.4)	—	392.6
7.875% Senior Secured Notes, due August 2022 (2016 Notes)	—	—	—	—	500.0	(4.2)	—	495.8

Schedule of Maturities of Long-term Debt

Annual maturities of long-term debt, which includes our notes and capital leases outstanding at December 31, 2020, are as follows:

	2021		2022		2023		2024		2025		2026 and Beyond		Total
Maturities	$	—	$	.9	$	462.3	$	.1	$	—	$	216.2	$	679.5