Pension and Postretirement Plans (Tables)

9 Months Ended

Nov. 03, 2018

Pension and Postretirement Plans [Abstract]

Net Benefit Expense (Income)

The following are the components of net periodic pension benefit cost and net periodic postretirement benefit income. In conjunction with the adoption of ASU 2017-07, Compensation - Retirement Benefits (Topic 715) Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,  service cost continues to be recognized as part of SG&A expense, while the remaining pension and postretirement expense components are now recognized as part of other income. Prior periods were not reclassified as required by this ASU as the amounts were not considered significant.

	Pension Benefits								Postretirement Benefits
	Thirteen weeks ended				Thirty-nine weeks ended				Thirteen weeks ended				Thirty-nine weeks ended
	Nov. 3,		Oct. 28,		Nov. 3,		Oct. 28,		Nov. 3,		Oct. 28,		Nov. 3,		Oct. 28,
($ in millions)	2018		2017		2018		2017		2018		2017		2018		2017
Service cost	$	5	$	4	$	14	$	12	$	—	$	—	$	—	$	—
Interest cost		8		6		21		19		—		—		—		—
Expected return on plan assets		(10)		(9)		(29)		(28)		—		—		—		—
Amortization of net loss (gain)		3		3		9		10		—		—		(1)		(1)
Net benefit expense (income)	$	6	$	4	$	15	$	13	$	—	$	—	$	(1)	$	(1)