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Fair Value Measurements - Recurring (Details) - USD ($) $ in Millions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Oct. 29, 2016 | Jul. 29, 2017 | Jan. 28, 2017 | Jul. 30, 2016
Level 3 | Auction rate securities |  |  |  |
Liabilities |  |  |  |
Proceeds from Sale of Other Assets | $ 2 |  |  |
Fair Value, Measurements, Recurring [Member] | Level 1 | Money market funds |  |  |  |
Assets |  |  |  |
Cash and cash equivalents |  | $ 175 | $ 290 | $ 87
Other current assets |  | 2 | 7 | 0
Fair Value, Measurements, Recurring [Member] | Level 1 | Marketable securities that fund deferred compensation |  |  |  |
Assets |  |  |  |
Other assets |  | 97 | 96 | 95
Fair Value, Measurements, Recurring [Member] | Level 2 | Commercial paper |  |  |  |
Assets |  |  |  |
Cash and cash equivalents |  | 60 | 0 | 0
Short-term investments |  | 299 | 349 | 170
Other current assets |  | 60 | 60 | 60
Fair Value, Measurements, Recurring [Member] | Level 2 | Time deposits |  |  |  |
Assets |  |  |  |
Cash and cash equivalents |  | 16 | 15 | 169
Short-term investments |  | 1,826 | 1,332 | 1,414
Other current assets |  | 101 | 100 | 79
Fair Value, Measurements, Recurring [Member] | Level 2 | Corporate bonds |  |  |  |
Assets |  |  |  |
Short-term investments |  | 0 | 0 | 6
Fair Value, Measurements, Recurring [Member] | Level 2 | Foreign currency derivative instruments |  |  |  |
Assets |  |  |  |
Other current assets |  | 0 | 2 | 1
Liabilities |  |  |  |
Accrued liabilities |  | 15 | 3 | 5
Fair Value, Measurements, Recurring [Member] | Level 2 | Interest Rate Swap [Member] |  |  |  |
Assets |  |  |  |
Other assets |  | 16 | 13 | 27
Fair Value, Measurements, Recurring [Member] | Level 3 | Auction rate securities |  |  |  |
Assets |  |  |  |
Other assets |  | $ 0 | $ 0 | $ 2

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