Retirement Benefit Plans (Tables)

6 Months Ended

Aug. 01, 2020

Retirement Benefit Plans [Abstract]

Schedule of Pension Plan Expense/(Income)

The components of net periodic pension expense/(income) for our non-contributory qualified defined benefit pension plan and supplemental pension plans were as follows:

	Three Months Ended				Six Months Ended
($ in millions)	August 1, 2020		August 3, 2019		August 1, 2020		August 3, 2019
Service cost	$	8	$	7	$	16	$	14
Other components of net periodic pension cost/(income):
Interest cost	26		33		52		66
Expected return on plan assets	(51)		(48)		(101)		(96)
Amortization of prior service cost	2		2		3		4
Amortization of net loss	1		—		1		—
Curtailment loss recognized	5		—		5		—
Special termination benefit cost recognized	94		—		94		—
	77		(13)		54		(26)
Net periodic pension expense/(income)	$	85	$	(6)	$	70	$	(12)