Fiscal Years Ended January 31, | ||||||||||
(Amounts in millions) | Estimated Useful Lives | 2013 | 2012 | |||||||
Land | N/A | $ | 25,612 | $ | 23,499 | |||||
Buildings and improvements | 3-40 years | 90,686 | 84,275 | |||||||
Fixtures and equipment | 3-25 years | 40,903 | 39,234 | |||||||
Transportation equipment | 3-15 years | 2,796 | 2,682 | |||||||
Construction in progress | N/A | 5,828 | 5,312 | |||||||
Property and equipment | $ | 165,825 | $ | 155,002 | ||||||
Accumulated depreciation | (51,896 | ) | (45,399 | ) | ||||||
Property and equipment, net | $ | 113,929 | $ | 109,603 |