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Shareholders' Equity - Share Repurchase Program (Details) - USD ($) shares in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 28, 2018 | Mar. 30, 2018 | Mar. 29, 2019 | Jul. 25, 2018
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Repurchases of stock, value | $ 563,000,000 | $ 155,000,000 |  |
Stock Repurchase Program Effective Until February 3, 2020 |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Stock repurchase program, number of shares authorized to be repurchased |  |  | $ 5,000,000,000 |
Repurchases of stock, shares |  |  | 0.8 |
Repurchases of stock, value |  |  | $ 61,000,000 |
Stock Repurchase Program Effective Until July 25, 2023 |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Stock repurchase program, number of shares authorized to be repurchased |  |  |  | $ 5,000,000,000
Repurchases of stock, shares |  |  | 7.6 |
Repurchases of stock, value |  |  | $ 502,000,000 |
Share Repurchase Program |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Repurchases of stock, value |  |  | 563,000,000 |
Stock repurchase program, remaining authorized repurchase, amount |  |  | $ 4,500,000,000 |

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