Defined Benefit Plans (Tables)

9 Months Ended

Sep. 27, 2019

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

The net periodic benefit cost of the noncontributory defined benefit pension plans incurred during the three and nine-month periods ended September 27, 2019 and September 28, 2018 are reflected in the following captions in the accompanying Consolidated and Combined Condensed Statements of Earnings ($ in millions):

	Three-Month Period Ended						Nine-Month Period Ended
	September 27, 2019			September 28, 2018			September 27, 2019			September 28, 2018
Service cost:
Selling, general and administrative expenses	$	(2.2	)	$	(2.6	)	$	(6.8	)	$	(7.5	)
Other net periodic pension costs:
Nonoperating income (expense)	0.2			1.5			1.6			1.9
Total	$	(2.0	)	$	(1.1	)	$	(5.2	)	$	(5.6	)

Defined benefit pension plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs

The following sets forth the components of the Company’s net periodic benefit cost of the noncontributory defined benefit pension plans ($ in millions):

	Three-Month Period Ended						Nine-Month Period Ended
	September 27, 2019			September 28, 2018			September 27, 2019			September 28, 2018
Service cost	$	(2.2	)	$	(2.6	)	$	(6.8	)	$	(7.5	)
Interest cost	(0.5		)	(0.5		)	(1.6		)	(1.5		)
Expected return on plan assets	0.7			1.0			2.3			2.9
Amortization of initial net obligation	—			(0.1		)	(0.1		)	(0.2		)
Amortization of prior service credit	0.1			0.1			0.1			0.1
Amortization of net loss	(0.1		)	(0.2		)	(0.3		)	(0.6		)
Curtailment and settlement gains recognized	—			1.2			1.2			1.2
Net periodic pension cost	$	(2.0	)	$	(1.1	)	$	(5.2	)	$	(5.6	)