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Pension and Postretirement Health Care Plans (Tables)
12 Months Ended
Jan. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Schedule of Change in Projected Benefit Obligation
Change in Projected Benefit Obligation
Qualified Plans
 
Nonqualified Plans
(millions)
2015

2014

 
2015

2014

Benefit obligation at beginning of period
$
3,844

$
3,173

 
$
43

$
35

Service cost
108

111

 
1

1

Interest cost
152

148

 
2

1

Actuarial (gain)/loss
(400
)
556

 
(4
)
9

Participant contributions
6

3

 


Benefits paid
(155
)
(147
)
 
(3
)
(3
)
Plan amendments
3


 


Benefit obligation at end of period
$
3,558

$
3,844

 
$
39

$
43

Schedule of Change in Plan Assets
 Change in Plan Assets
Qualified Plans
 
Nonqualified Plans
(millions)
2015

2014

 
2015

2014

Fair value of plan assets at beginning of period
$
3,784

$
3,267

 
$

$

Actual return on plan assets
(231
)
507

 


Employer contributions
203

154

 
3

3

Participant contributions
6

3

 


Benefits paid
(155
)
(147
)
 
(3
)
(3
)
Fair value of plan assets at end of period
3,607

3,784

 


Benefit obligation at end of period
3,558

3,844

 
39

43

Funded/(underfunded) status
$
49

$
(60
)
 
$
(39
)
$
(43
)
Schedule of Recognition of Funded/(Underfunded) Status
Recognition of Funded/(Underfunded) Status
Qualified Plans
 
Nonqualified Plans
(millions)
2015

2014

 
2015

2014

Other noncurrent assets
$
66

$

 
$

$

Accrued and other current liabilities
(1
)
(1
)
 
(6
)
(4
)
Other noncurrent liabilities
(16
)
(59
)
 
(33
)
(39
)
Net amounts recognized
$
49

$
(60
)
 
$
(39
)
$
(43
)
Schedule of Amounts in Accumulated Other Comprehensive Income
Amounts in Accumulated Other Comprehensive Income
 
(millions)
2015

2014

Net actuarial loss
$
1,022

$
1,018

Prior service credits
(57
)
(69
)
Amounts in accumulated other comprehensive income
$
965

$
949

Schedule of Change in Accumulated Other Comprehensive Income

Change in Accumulated Other Comprehensive Income
 
 
(millions)
Pretax

Net of Tax

February 1, 2014
$
712

$
430

Net actuarial loss
291

176

Amortization of net actuarial losses
(65
)
(40
)
Amortization of prior service costs and transition
11

7

January 31, 2015
$
949

$
573

Net actuarial loss
87

53

Amortization of net actuarial losses
(82
)
(50
)
Amortization of prior service costs and transition
11

7

January 30, 2016
$
965

$
583

Schedule of Expected Amortization of Amounts in Accumulated Other Comprehensive Income
Expected Amortization of Amounts in Accumulated Other Comprehensive Income
(millions)
Pretax

Net of Tax

Net actuarial loss
$
46

$
28

Prior service credits
(11
)
(7
)
Total amortization expense
$
35

$
21

Schedule of Net Pension Benefits Expense
Net Pension Benefits Expense
 
 
 
(millions)
2015

2014

2013

Service cost benefits earned during the period
$
109

$
112

$
118

Interest cost on projected benefit obligation
154

149

137

Expected return on assets
(260
)
(233
)
(235
)
Amortization of losses
82

65

103

Amortization of prior service cost
(11
)
(11
)
(11
)
Settlement and special termination charges
4


3

Total
$
78

$
82

$
115

Schedule of Defined Benefit Pension Plan Information
Defined Benefit Pension Plan Information
(millions)
2015

 
2014

Accumulated benefit obligation (ABO) for all plans (a)
$
3,550

 
$
3,834

Projected benefit obligation for pension plans with an ABO in excess of plan assets (b)
65

 
65

Total ABO for pension plans with an ABO in excess of plan assets
60

 
56

Fair value of plan assets for pension plans with an ABO in excess of plan assets
10

 

(a) 
The present value of benefits earned to date assuming no future salary growth.
(b) 
The present value of benefits earned to date by plan participants, including the effect of assumed future salary increases.
Schedule of Benefit Obligation Weighted Average Assumptions
Benefit Obligation Weighted Average Assumptions
 
 
2015

2014

Discount rate
4.70
%
3.87
%
Average assumed rate of compensation increase
3.00

3.00

Schedule of Net Periodic Benefit Expense Weighted Average Assumptions
Net Periodic Benefit Expense Weighted Average Assumptions
 
 
2015

2014

2013

Discount rate
3.87
%
4.77
%
4.40
%
Expected long-term rate of return on plan assets
7.50

7.50

8.00

Average assumed rate of compensation increase
3.00

3.00

3.00

Schedule of Asset Category
Asset Category
Current Targeted

Actual Allocation
 
Allocation

2015

2014

Domestic equity securities (a)
14
%
16
%
19
%
International equity securities
9

10

12

Debt securities
45

44

28

Balanced funds
23

21

31

Other (b)
9

9

10

Total
100
%
100
%
100
%
(a) 
Equity securities include our common stock in amounts substantially less than 1 percent of total plan assets as of January 30, 2016 and January 31, 2015.
(b) 
Other assets include private equity, mezzanine and high-yield debt, natural resources and timberland funds, multi-strategy hedge funds, derivative instruments, and a 4 percent allocation to real estate.
Schedule of Fair Value Measurements
Fair Value Measurements
 
Fair Value at
(millions)
Pricing Category
January 30, 2016

 
January 31, 2015

Cash and cash equivalents
Level 1
$
43

 
$
7

Government securities (a)
Level 2
470

 
349

Fixed income (b)
Level 2
979

 
571

Other (c)
Level 2
8

 
21

 
 
1,500

 
948

Investments valued using NAV per share (d)
 
 
 
 
Cash and cash equivalents
 
455

 
204

Common collective trusts
 
544

 
1,102

Fixed Income
 
49

 
53

Balanced funds
 
756

 
1,152

Private equity funds
 
141

 
171

Other
 
162

 
154

Total plan assets
 
$
3,607

 
$
3,784

(a) 
Investments in government securities and long-term government bonds.
(b) 
Investments in corporate and municipal bonds.
(c) 
Investments in derivative investments.    
(d) 
In accordance with Subtopic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the statement of financial position.

Schedule of Estimated Future Benefit Payments
Estimated Future Benefit Payments
(millions)
Pension
Benefits

2016
$
169

2017
170

2018
172

2019
180

2020
188

2021-2025
1,068