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Equity - Narrative (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 29, 2019 | Jun. 30, 2018 | Jun. 29, 2019 | Jun. 30, 2018 | Dec. 30, 2017
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Anti-dilutive potential common shares excluded from reconciliation | 15 | 9 | 14 | 6 |
Common stock repurchased |  | $ 50 | $ 220 | $ 50 |
December 2017 Share Repurchase Program |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  | $ 1,500
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 960 |  | $ 960 |  |
Common stock repurchased (in shares) |  |  | 4 | 1 |
Common stock repurchased |  |  | $ 220 | $ 50 |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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