Defined Benefit Pension Plans

9 Months Ended

Sep. 30, 2020

Compensation And Retirement Disclosure [Abstract]

Defined Benefit Pension Plans

Note 10—Defined benefit pension plans:

The components of our net periodic defined benefit pension cost are presented in the table below.

	Three months ended						Nine months ended
	September 30,						September 30,
	2019			2020			2019			2020
	(In millions)
Service cost	$	2.7		$	3.5		$	8.3		$	9.9
Interest cost		4.0			3.1			11.9			9.0
Expected return on plan assets		(3.6	)		(2.9	)		(10.7	)		(8.4	)
Amortization of prior service cost		.1			.1			.2			.2
Recognized actuarial losses		3.7			5.0			11.2			14.4
Total	$	6.9		$	8.8		$	20.9		$	25.1

We expect to contribute the equivalent of approximately $19 million to all of our defined benefit pension plans during 2020.