Deferred Costs |
3 Months Ended |
|---|---|
Apr. 30, 2017 | |
| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] | |
| Deferred Costs | Deferred Costs Deferred costs, which primarily consist of deferred sales commissions, were $166 million and $169 million as of April 30, 2017 and January 31, 2017, respectively. For the three months ended April 30, 2017 and 2016, amortization expense for the deferred costs was $14 million and $10 million, respectively, and there was no impairment loss in relation to the costs capitalized. |