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Legal Proceedings and Contingencies (Details) $ in Millions |  |  | 1 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Jan. 04, 2019 claim | Mar. 31, 2016 party | Jan. 15, 2019 claim | Dec. 28, 2018 USD ($)
Exelis | Passaic River Alaska |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of potentially responsible parties notified (over 100) | party |  | 100 |  |
Estimated cost for all participating parties of EPA's preferred alternative | $ |  |  |  | $ 1,380
L3 Harris Technologies, Inc. | Subsequent Event | Pending Litigation |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed |  |  | 4 |
L3 Harris Technologies, Inc. | Subsequent Event | Pending Litigation | Putative Class Action Lawsuit | L3 Parties |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed |  |  | 2 |
L3 Harris Technologies, Inc. | Subsequent Event | Pending Litigation | Putative Class Action Lawsuit | Kent v. L3 Technologies, Inc. |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed | 1 |  |  |
L3 Harris Technologies, Inc. | Subsequent Event | Pending Litigation | Individual Lawsuit | L3 Parties |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed |  |  | 1 |

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