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Accumulated Other Comprehensive Income
 3 Months Ended
Apr. 30, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income
 
 
(millions)
Cash Flow
Hedges

 
Currency
Translation
Adjustment

 
Pension and
Other
Benefits

 
Total

January 30, 2016
$
(19
)
 
$
(22
)
 
$
(588
)
 
$
(629
)
Other comprehensive income before reclassifications
—

 
4

 
3

 
7

Amounts reclassified from AOCI
1

(a) 
—

 
4

(b) 
5

April 30, 2016
$
(18
)
 
$
(18
)
 
$
(581
)
 
$
(617
)
(a) Represents gains and losses on cash flow hedges, net of $1 million of taxes.
(b) Represents amortization of pension and other benefit liabilities, net of $2 million of taxes.