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Comprehensive Income (Tables)
 9 Months Ended
Nov. 03, 2018
Equity [Abstract]  
Components of accumulated other comprehensive income
net of tax, were as follows for the three and nine months ended November 3, 2018, and October 28, 2017 ($ in millions):
 
Three Months Ended
 
Nine Months Ended
 
November 3, 2018
 
October 28, 2017
 
November 3, 2018
 
October 28, 2017
Foreign currency translation adjustments
$
4

 
$
(17
)
 
$
(14
)
 
$
25