Postretirement Health Care and Life Insurance Benefits (Tables) - Other Postretirement Benefit Plan [Member]

12 Months Ended

Jan. 28, 2017

Reconciliation of Benefit Obligations, Plan Assets, and Funded Status Pension Plan

The following provides a reconciliation of benefit obligations, plan assets, and funded status of the postretirement obligations as of January 28, 2017 and January 30, 2016:

	2016			2015
	(millions)
Change in accumulated postretirement benefit obligation
Accumulated postretirement benefit obligation, beginning of year	$	212		$	243
Service cost	—			—
Interest cost	6			8
Actuarial gain	(13		)	(22		)
Medicare Part D subsidy	1			1
Benefits paid	(20		)	(18		)
Accumulated postretirement benefit obligation, end of year	186			212
Change in plan assets
Fair value of plan assets, beginning of year	—			—
Company contributions	20			18
Benefits paid	(20		)	(18		)
Fair value of plan assets, end of year	—			—
Funded status at end of year	$	(186	)	$	(212	)
Amounts recognized in the Consolidated Balance Sheets at January 28, 2017 and January 30, 2016
Accounts payable and accrued liabilities	$	(18	)	$	(20	)
Other liabilities	(168		)	(192		)
	$	(186	)	$	(212	)
Amounts recognized in accumulated other comprehensive loss at January 28, 2017 and January 30, 2016
Net actuarial gain	$	(31	)	$	(22	)

Schedule of Net Periodic Benefit Costs

Net postretirement benefit costs and other amounts recognized in other comprehensive loss included the following actuarially determined components:

	2016			2015			2014
	(millions)
Net Periodic Postretirement Benefit Cost
Service cost	$	—		$	—		$	—
Interest cost	6			8			10
Amortization of net actuarial gain	(4		)	—			(5		)
Amortization of prior service cost	—			—			—
	2			8			5
Other Changes in Plan Assets and Projected Benefit Obligation Recognized in Other Comprehensive Loss
Net actuarial (gain) loss	(13		)	(22		)	30
Amortization of net actuarial gain	4			—			5
Amortization of prior service cost	—			—			—
	(9		)	(22		)	35
Total recognized	$	(7	)	$	(14	)	$	40

Weighted Average Assumptions

The following weighted average assumption was used to determine the net postretirement benefit costs for the postretirement obligations:

	2016		2015		2014
Discount rate used to measure interest cost	3.14	%	3.55	%	4.50	%

The following weighted average assumption was used to determine the accumulated postretirement benefit obligations at January 28, 2017 and January 30, 2016:

	2016		2015
Discount rate	3.99	%	4.15	%

Schedule of Health Care Cost Trend Rates

The following provides the assumed health care cost trend rates related to the Company’s accumulated postretirement benefit obligations at January 28, 2017 and January 30, 2016:

	2016	2015
Health care cost trend rates assumed for next year	6.15% - 9.75%	6.25% - 10.0%
Rates to which the cost trend rate is assumed to decline (the ultimate trend rate)	5.0%	5.0%
Year that the rate reaches the ultimate trend rate	2027	2027

Schedule Of Effect Of One Percentage Point Change In Assumed Health Care Cost Trend Rates

A one-percentage-point change in the assumed health care cost trend rates would have the following effects:

	1 – Percentage Point Increase		1 – Percentage Point Decrease
	(millions)
Effect on total of service and interest cost	$	—	$	—
Effect on accumulated postretirement benefit obligations	$	11	$	(10	)

Estimated Future Benefit Payments

The following table reflects the benefit payments estimated to be funded by the Company and paid from the accumulated postretirement benefit obligations and estimated federal subsidies expected to be received under the Medicare Prescription Drug Improvement and Modernization Act of 2003:

	Expected Benefit Payments		Expected Federal Subsidy
	(millions)
Fiscal Year
2017	$	17	$	1
2018	17		1
2019	16		1
2020	16		—
2021	15		—
2022-2026	63		1