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Changes in Accumulated Other Comprehensive Loss by Component (Detail 1) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 31, 2015
Aug. 01, 2014
Jul. 31, 2015
Aug. 01, 2014
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]        
Unrealized Losses on Interest Rate Cash Flow Hedges, Beginning Balance, Pre-Tax Amount [1] $ 5 $ 1 $ 8 $ 3
Unrealized Losses on Interest Rate Cash Flow Hedges, Other comprehensive loss before reclassifications, Pre-Tax Amount [1] 3 2 2 2
Unrealized Losses on Interest Rate Cash Flow Hedges, Amounts reclassified from accumulated other comprehensive loss, Pre-Tax Amount [1] (2) (1) (4) (3)
Unrealized Losses on Interest Rate Cash Flow Hedges, Net current-period other comprehensive loss (income), Pre-Tax Amount [1] 1 1 (2) (1)
Unrealized Losses on Interest Rate Cash Flow Hedges, Ending Balance, Pre-Tax Amount [1] 6 2 6 2
Unrealized Losses on Fixed Interest Rate Swap Cash Flow Hedges, Beginning Balance, Income Tax [2] (2)   (3) (1)
Unrealized Losses on Fixed Interest Rate Swap Cash Flow Hedges, Other comprehensive loss before reclassifications, Income Tax [2] (1) (1) (1) (1)
Unrealized Losses on Fixed Interest Rate Swap Cash Flow Hedges, Amounts reclassified from accumulated other comprehensive loss, Income Tax [2] 1   2 1
Unrealized Losses on Fixed Interest Rate Swap Cash Flow Hedges, Net current-period other comprehensive loss (income), Income Tax [2]   (1) 1  
Unrealized Losses on Fixed Interest Rate Swap Cash Flow Hedges, Ending Balance, Income Tax [2] (2) (1) (2) (1)
Unrealized Losses on Interest Rate Cash Flow Hedges, Beginning Balance, Net Amount 3 1 5 2
Unrealized Losses on Interest Rate Cash Flow Hedges, Other comprehensive loss before reclassifications, Net Amount 2 1 1 1
Unrealized Losses on Interest Rate Cash Flow Hedges, Amounts reclassified from accumulated other comprehensive loss, Net Amount (1) (1) (2) (2)
Unrealized Losses on Interest Rate Cash Flow Hedges, Net current-period other comprehensive loss (income), Net Amount 1   (1) (1)
Unrealized Losses on Interest Rate Cash Flow Hedges, Ending Balance, Net Amount $ 4 $ 1 $ 4 $ 1
[1] The amount reclassified from accumulated other comprehensive loss was included in interest expense.
[2] The amount reclassified from accumulated other comprehensive loss was included in the provision for income taxes.