The following table summarizes the Company's property and equipment balances and includes the estimated useful lives that are generally used to depreciate the assets on a straight-line basis: | | | | | | | | | | | | | | | | Fiscal Years Ended January 31, | (Amounts in millions) | | Estimated Useful Lives | | 2014 | | 2013 | Land | | N/A | | $ | 26,184 |
| | $ | 25,612 |
| Buildings and improvements | | 3-40 years | | 95,488 |
| | 90,686 |
| Fixtures and equipment | | 3-25 years | | 42,971 |
| | 40,903 |
| Transportation equipment | | 3-15 years | | 2,785 |
| | 2,796 |
| Construction in progress | | N/A | | 5,661 |
| | 5,828 |
| Property and equipment | | | | $ | 173,089 |
| | $ | 165,825 |
| Accumulated depreciation | | | | (57,725 | ) | | (51,896 | ) | Property and equipment, net | | | | $ | 115,364 |
| | $ | 113,929 |
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