Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Components of Changes in Accumulated Other Comprehensive Income (AOCI)

Changes in accumulated other comprehensive income (loss) (AOCI) by component were as follows (dollars in millions). Amounts in parentheses indicate losses:

	Foreign Currency Translation Adjustments			Unrealized Loss on Foreign Exchange Contracts			Unrealized Loss on Marketable Debt Securities		Unfunded Employee Benefit Obligations			Total
Balance at January 1, 2020	$	(0.4	)	$	(0.2	)	$	—	$	(158.9	)	$	(159.5	)
Other comprehensive income before reclassifications,    net of tax					—			0.7		—			0.7
Amounts reclassified from AOCI, net of tax		—			—			—		5.4			5.4
Balance at June 30, 2020	$	(0.4	)	$	(0.2	)	$	0.7	$	(153.5	)	$	(153.4	)

Reclassifications Out of Accumulated Other Comprehensive Income (AOCI)

Reclassifications out of AOCI were as follows (dollars in millions). Amounts in parentheses indicate expenses in the Consolidated Statements of Income:

	Amounts Reclassified from AOCI
	Three Months Ended June 30,						Six Months Ended June 30,
Details about AOCI Components	2020			2019			2020			2019
Unrealized loss on treasury locks, net (a)	$	—		$	(1.3	)	$	—		$	(2.6	)	See (a) below
		—			0.3			—			0.7		Tax benefit
	$	—		$	(1.0	)	$	—		$	(1.9	)	Net of tax
Unfunded employee benefit obligations (b)
Amortization of prior service costs	$	(1.0	)	$	(1.5	)	$	(2.0	)	$	(3.0	)	See (b) below
Amortization of actuarial losses		(2.6	)		(1.6	)		(5.2	)		(3.3	)	See (b) below
		(3.6	)		(3.1	)		(7.2	)		(6.3	)	Total before tax
		0.9			0.8			1.8			1.6		Tax benefit
	$	(2.7	)	$	(2.3	)	$	(5.4	)	$	(4.7	)	Net of tax

(a) For 2019, this AOCI component is included in interest expense, net. Amount relates to the amortization of the effective portion of treasury lock derivative instruments recorded in AOCI. The remaining balances of the treasury locks were written off as a result of the Company’s November 2019 debt refinancing. For a discussion of treasury lock derivative instrument activity, see Note 16, Derivative Instruments and Hedging Activities, of the Notes to Consolidated Financial Statements in "Part II, Item 8. Financial Statements and Supplementary Data" of our 2019 Annual Report on Form 10-K.

(b) These AOCI components are included in the computation of net pension and postretirement benefit costs. See Note 13, Employee Benefit Plans and Other Postretirement Benefits, for additional information.