(In Millions) | Balance at beginning of period | Charges to costs and expenses | Deductions | Balance at end of period | |||||||||||||||
January 31, 2014: | |||||||||||||||||||
Reserve for loss on obsolete inventory | $ | 57 | $ | 11 | (1) | $ | — | $ | 68 | ||||||||||
Reserve for inventory shrinkage | 142 | 325 | (309 | ) | (2) | 158 | |||||||||||||
Reserve for sales returns | 59 | — | (1 | ) | (3) | 58 | |||||||||||||
Deferred tax valuation allowance | 142 | 22 | (4) | — | 164 | ||||||||||||||
Self-insurance liabilities | 899 | 1,164 | (1,159 | ) | (5) | 904 | |||||||||||||
Reserve for exit activities | 75 | 11 | (32 | ) | (6) | 54 | |||||||||||||
February 1, 2013: | |||||||||||||||||||
Reserve for loss on obsolete inventory | $ | 47 | $ | 10 | (1) | $ | — | $ | 57 | ||||||||||
Reserve for inventory shrinkage | 141 | 316 | (315 | ) | (2) | 142 | |||||||||||||
Reserve for sales returns | 56 | 3 | (3) | — | 59 | ||||||||||||||
Deferred tax valuation allowance | 101 | 41 | (4) | — | 142 | ||||||||||||||
Self-insurance liabilities | 864 | 1,164 | (1,129 | ) | (5) | 899 | |||||||||||||
Reserve for exit activities | 86 | 11 | (22 | ) | (6) | 75 | |||||||||||||
February 3, 2012: | |||||||||||||||||||
Reserve for loss on obsolete inventory | $ | 39 | $ | 8 | (1) | $ | — | $ | 47 | ||||||||||
Reserve for inventory shrinkage | 127 | 308 | (294 | ) | (2) | 141 | |||||||||||||
Reserve for sales returns | 52 | 4 | (3) | — | 56 | ||||||||||||||
Deferred tax valuation allowance | 99 | 2 | (4) | — | 101 | ||||||||||||||
Self-insurance liabilities | 835 | 1,126 | (1,097 | ) | (5) | 864 | |||||||||||||
Reserve for exit activities | 12 | 98 | (24 | ) | (6) | 86 | |||||||||||||