Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2022

Supplemental Cash Flow Elements [Abstract]

Schedule of Noncash Investing and Financing Activities

Noncash investing and financing activities are as follows:

	Nine Months Ended
	September 30,
	2022			2021
	(Dollars in Millions)
Right-of-use assets obtained in exchange for    new finance lease liabilities	$	10.2		$	177.8
Right-of-use assets obtained in exchange for new    operating lease liabilities	$	23.4		$	17.3
Accrued liabilities for purchases of property, plant and equipment	$	51.8		$	28.6
Remeasurement of operating lease right-of-use assets	$	(4.9	)	$	(12.4	)
Remeasurement of finance lease right-of-use assets	$	(11.4	)	$	—

Supplemental Disclosures of Cash Flow Information

Supplemental disclosures of cash flow information are as follows:

	Nine Months Ended
	September 30,
	2022		2021
	(Dollars in Millions)
Cash paid for interest, net of capitalized amount	$	126.3	$	68.7
Cash paid for income taxes, net of refunds	$	160.0	$	101.1