Annual report pursuant to Section 13 and 15(d)

Retirement Benefit Plans (Obligations and Funded Status) (Details)

v3.6.0.2
Retirement Benefit Plans (Obligations and Funded Status) (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Dec. 31, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Defined Benefit Pension Plan, Liabilities, Noncurrent $ 18 $ 40    
Change in fair value of plan assets        
Increase/(Decrease) in funded status of plan $ (22)      
Actual return on plan assets (percent) 12.30%      
Cumulative return on plan assets since inception (percent) 8.90%      
Pension Plan [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Defined Benefit Pension Plan, Liabilities, Noncurrent $ 18      
Prepaid pension $ 40      
Funded status of the plan (percent) 99.00%      
Change in APBO        
Beginning balance $ 3,327 5,254    
Service cost 55 69 $ 61  
Interest cost 153 196 211  
Amendments 0 0    
Transfer of benefits 0 (1,555)    
Actuarial loss/(gain) 151 (247)    
Benefits (paid) (213) (390)    
Balance at measurement date 3,473 3,327 5,254  
Change in fair value of plan assets        
Beginning Balance 3,287 5,474    
Company contributions 0 0    
Actual return on assets [1] 381 (242)    
Benefits (paid) (213) (390)    
Balance at measurement date 3,455 3,287 5,474  
Funded status of the plan [2] (18) (40)    
Defined Benefit Plan, Settlements, Plan Assets 0 (1,555)    
Supplemental Employee Retirement Plan [Member]        
Change in APBO        
Beginning balance 176 191    
Service cost 0 0 0  
Interest cost 7 7 9  
Amendments 0 0    
Transfer of benefits 0 0 (56)  
Actuarial loss/(gain) 10 (3)    
Benefits (paid) (41) (19)    
Balance at measurement date 152 176 191  
Change in fair value of plan assets        
Beginning Balance 0 0    
Company contributions 41 19    
Actual return on assets 0 0    
Benefits (paid) (41) (19)    
Balance at measurement date 0 0 $ 0  
Funded status of the plan [3] (152) (176)    
Current portion of pension plan liability accrued 26 46    
Defined Benefit Plan, Settlements, Plan Assets $ 0 $ 0    
Exceeded 100% [Member] | Pension Plan [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Funded status of the plan (percent)       100.00%
[1] Includes plan administrative expenses.
[2] $18 million in 2016 and $40 million in 2015 are included in Other liabilities in the Consolidated Balance Sheets.
[3] $26 million in 2016 and $46 million in 2015 were included in Other accounts payable and accrued expenses on the Consolidated Balance Sheets, and the remaining amounts were included in Other liabilities.