January 31, | ||||||||
(Amounts in millions) | 2013 | 2012 | ||||||
Deferred tax assets: | ||||||||
Loss and tax credit carryforwards | $ | 3,525 | $ | 2,996 | ||||
Accrued liabilities | 2,683 | 2,949 | ||||||
Share-based compensation | 204 | 376 | ||||||
Other | 1,500 | 1,029 | ||||||
Total deferred tax assets | 7,912 | 7,350 | ||||||
Valuation allowance | (2,225 | ) | (2,528 | ) | ||||
Deferred tax assets, net of valuation allowance | 5,687 | 4,822 | ||||||
Deferred tax liabilities: | ||||||||
Property and equipment | 5,830 | 5,891 | ||||||
Inventories | 1,912 | 1,627 | ||||||
Other | 1,157 | 409 | ||||||
Total deferred tax liabilities | 8,899 | 7,927 | ||||||
Net deferred tax liabilities | $ | 3,212 | $ | 3,105 | ||||