Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Apr. 28, 2019 |
Apr. 29, 2018 |
Jan. 27, 2019 |
|
| Equity [Abstract] | |||
| Dividends paid | $ 97 | $ 91 | |
| Aggregated number of shares repurchased under stock repurchase program (in shares) | 260,000,000 | ||
| Aggregated cost of shares repurchased | $ 7,080 | ||
| Remaining authorized repurchase amount | $ 7,240 | ||
| Preferred stock outstanding (in shares) | 0 | 0 | |
| Authorized number of shares of common stock (in shares) | 2,000,000,000.00 | ||
| Par value of common stock (in dollars per share) | $ 0.001 | ||