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Commitments and Contingent Liabilities Other PFOA Matters / Fayetteville (Details) | 9 Months Ended
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Sep. 30, 2020 lawsuits
Firefighting Foam [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 690
Personal injury cases [Member] | Firefighting Foam [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 630
NEW YORK | PFOA Matters: Drinking Water Actions [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 50
NEW JERSEY | PFOA Matters: Drinking Water Actions [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 2
NEW JERSEY | Natural Resources Damages [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 4
OHIO | PFOA Matters: Drinking Water Actions [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 3
NORTH CAROLINA | PFOA Matters: Drinking Water Actions [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Number of Property Owners | 200
Loss Contingency, Number of Additional Plaintiffs | 100
Alabama Water Utility [Member] | Natural Resources Damages [Member] |
Loss Contingencies [Line Items] |
Loss Contingency, Pending Claims, Number | 1

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