Annual report pursuant to Section 13 and 15(d)

Retirement Benefit Plans (Net Periodic Expense) (Details)

v3.8.0.1
Retirement Benefit Plans (Net Periodic Expense) (Details)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 07, 2015
USD ($)
employee
Aug. 03, 2015
employee
Apr. 29, 2017
USD ($)
employee
Jan. 30, 2016
USD ($)
Jan. 30, 2016
USD ($)
Oct. 31, 2015
employee
Feb. 03, 2018
USD ($)
Jan. 28, 2017
USD ($)
Jan. 30, 2016
USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Discount rate       4.73% 4.73%   3.98% 4.40% 4.73%
Defined benefit plan, description of plan amendment             In 2017, the Company initiated a Voluntary Early Retirement Program (VERP) for approximately 6,000 eligible associates. Eligibility for the VERP included home office, stores and supply chain personnel who met certain criteria related to age and years of service as of January 31, 2017. The consideration period for eligible associates to accept the VERP ended on March 31, 2017. Based on the approximately 2,800 associates who elected to accept the VERP, we incurred a total charge of $112 million for enhanced retirement benefits. The enhanced retirement benefits increased the projected benefit obligation (PBO) of the Primary Pension Plan and the Supplemental Pension Plans by $88 million and $24 million, respectively. In addition, we incurred curtailment charges of $6 million related to our Primary Pension Plan and $2 million related to Supplemental Pension Plans as a result of the reduction in the expected years of future service related to these plans. Additionally, we recognized settlement expense of $13 million in 2017 due to higher lump-sum payment activity to retirees primarily as a result of the VERP executed earlier in the year. In August 2015, as a result of a plan amendment, we offered approximately 31,000 retirees and beneficiaries in the Primary Pension Plan who commenced their benefit between January 1, 2000 and August 31, 2012 the option to receive a lump-sum settlement payment. In addition, we offered approximately 8,000 participants in the Primary Pension Plan who separated from service and had a deferred vested benefit as of August 31, 2012 the option to receive a lump-sum settlement payment. Approximately 12,000 retirees and beneficiaries elected to receive voluntary lump-sum payments to settle the Primary Pension Plan's obligation to them. In addition, approximately 1,900 former employees having deferred vested benefits elected to receive lump-sums. The lump-sum settlement payments totaling $717 million were made by the Company on November 5, 2015 using assets from the Primary Pension Plan. On December 7, 2015, the Company completed the purchase of a group annuity contract that transferred to The Prudential Insurance Company of America the pension benefit obligation of approximately 18,000 retirees totaling $838 million. Actuarial loss of $180 million was recognized as settlement expense as a result of the lump-sum offer payment and the purchase of the group annuity contract.    
Funded status of plan percentage, description             As of the end of 2017, the funded status of the Primary Pension Plan was 102%. The Primary Benefit Obligation (PBO) is the present value of benefits earned to date by plan participants, including the effect of assumed future salary increases. Under the Employee Retirement Income Security Act of 1974 (ERISA), the funded status of the plan exceeded 100% as of December 31, 2017 and 2016, the qualified pension plan’s year end.    
Number of employees offered lump sum settlement | employee   31,000              
Participants Who Separated From Service | employee   8,000              
Number of employees accepted lump sum settlement | employee           12,000      
Special termination benefits (1)     $ 112            
Participants Who Separated From Service and Accepted | employee           1,900      
Net Periodic Benefit Expense/(Income) [Abstract]                  
Net periodic benefit expense/(income)             $ 21 $ 19 $ 162
Number of employees eligible for VERP | employee     6,000            
Number of employees accepted VERP | employee     2,800            
Pension Plan [Member]                  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months             195    
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter             1,080    
Settlements             217 0  
Balance at measurement date       $ 3,327 $ 3,327   3,467 3,473 3,327
Number of retirees for which pension obligation transferred | employee 18,000                
DefinedBenefitPlansandOtherPostretirementBenefitPlansTransferredPensionBenefitObligation $ 838                
Payments for lump sum settlement         717        
Special termination benefits (1)             88 [1] 0  
Net Periodic Benefit Expense/(Income) [Abstract]                  
Service cost             42 55 69
Interest cost             143 153 196
Expected return on plan assets             (216) (215) (357)
Actuarial loss/(gain)             0 0 52
Amortization of prior service cost/(credit)             7 8 8
Settlement expense       (180)     13 0 180
Other             0 0 6
Net periodic benefit expense/(income)             $ (11) 1 154
Defined benefit plan increase (decrease) due to enhanced retirement benefits     $ 88            
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment     6            
Primary Pension Plan and Benefit Restoration Plan [Member]                  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Employee retirement age             65 years    
Supplemental Employee Retirement Plan [Member]                  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months             $ 29    
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter             44    
Settlements             $ 0 0  
Employee retirement age             60 years    
Termination of company-paid term life insurance, employee age             70 years    
Termination of employee-paid term life insurance, employee age             65 years    
Balance at measurement date       $ 176 $ 176   $ 182 152 176
Special termination benefits (1)             24 [1] 0  
Net Periodic Benefit Expense/(Income) [Abstract]                  
Service cost             0 0 0
Interest cost             7 7 7
Actuarial loss/(gain)             25 11 1
Amortization of prior service cost/(credit)             0 0 0
Net periodic benefit expense/(income)             32 18 8
Defined benefit plan increase (decrease) due to enhanced retirement benefits     24            
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment     $ 2            
Other Postretirement Benefit Plan, Defined Benefit [Member]                  
Net Periodic Benefit Expense/(Income) [Abstract]                  
Net periodic benefit expense/(income)               (17) (7)
Primary and Supplemental Pension Plans Total [Member]                  
Net Periodic Benefit Expense/(Income) [Abstract]                  
Service cost             42 55 69
Interest cost             150 160 203
Expected return on plan assets             (216) (215) (357)
Actuarial loss/(gain)             25 11 53
Amortization of prior service cost/(credit)             7 8 8
Settlement expense             13 0 180
Other             0 0 6
Net periodic benefit expense/(income)             $ 21 $ 19 $ 162
Social Security Benefits [Member]                  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Employee retirement age             62 years    
Minimum [Member] | Supplemental Employee Retirement Plan [Member]                  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Employee retirement age for equal social security benefits             60 years    
Maximum [Member] | Supplemental Employee Retirement Plan [Member]                  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                  
Employee retirement age for equal social security benefits             62 years    
[1] See Note 17 for VERP charges classified in Restructuring and management transition.