| **Inventories**                     | 6 Months Ended                                                                                                                                                                                                                                                               |
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| **Inventory Disclosure [Abstract]** |                                                                                                                                                                                                                                                                         |
| Inventories                         | Note G — InventoriesInventories are summarized below: December 28, 2018 June 29, 2018     (In millions)Finished products$69 $91Work in process128 121Raw materials and supplies228 199 $425 $411 |

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| - References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| - Definition
The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.
+ References
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998
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