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Commitments and Contingent Liabilities - Litigation - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 23, 2017 USD ($) | Aug. 31, 2019 Supplier | Mar. 31, 2019 USD ($) lawsuit | Mar. 31, 2017 USD ($) | Dec. 31, 2019 USD ($) lawsuit water_district plaintiff | Dec. 31, 2004 resident | Sep. 30, 2019 lawsuit | Dec. 31, 2018 USD ($) lawsuit | Dec. 31, 2017 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Accrual balance |  |  |  |  | $ 60,000,000 |  |  | $ 64,000,000 |
Number of water suppliers filed lawsuits | Supplier |  | 8 |  |  |  |  |  |  |
Contract termination fees |  |  |  |  | 26,000,000 |  |  |  |
Mining Solutions [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Long-lived assets |  |  |  |  | 144,000,000 |  |  |  |
Goodwill |  |  |  |  | 51,000,000 |  |  |  |
Other related prepaid costs |  |  |  |  | 7,000,000 |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Loss contingency, potential additional loss |  |  |  |  |  |  |  |  | $ 530,000,000
Funding for medical monitoring program [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Escrow deposit disbursements |  |  |  |  | $ 1,700,000 |  |  |  |
MDL Settlement [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Date of agreement month and year |  |  |  |  | 2017-03 |  |  |  |
Total settlement amount |  |  |  | $ 670,700,000 |  |  |  |  |
PFOA MDL Settlement [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Lawsuits alleging personal injury - Filed | lawsuit |  |  |  |  | 61 |  |  |  |
Settlement payments | $ 335,000,000 |  |  |  |  |  |  |  |
Benzene Related Illness [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Lawsuits alleging illness | lawsuit |  |  |  |  | 16 |  |  | 19 |
PFOA Matters [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Accrual balance |  |  |  |  | $ 20,000,000 |  |  | $ 22,000,000 |
Number of lawsuits filed | lawsuit |  |  | 4 |  |  |  |  |  |
Cost of preparation of natural resource damage assessment plan and access to related documents |  |  | $ 100,000 |  |  |  |  |  |
PFOA Matters [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Settlement payments |  |  |  |  | $ 25,000,000 |  |  |  |
Period of payments |  |  |  |  | 5 years |  |  |  |
PFOA Matters: Drinking Water Actions [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Accrual balance |  |  |  |  | $ 20,000,000 |  |  | $ 22,000,000 |
Binding settlement agreement, class size | resident |  |  |  |  |  | 80,000 |  |  |
Number of water districts Company must provide treatment | water_district |  |  |  |  | 6 |  |  |  |
PFOA Matters: Drinking Water Actions [Member] | Funding for medical monitoring program [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Loss contingency, potential additional loss |  |  |  |  | $ 235,000,000 |  |  |  |
PFOA Matters: Additional Actions [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Lawsuits alleging personal injury - Filed | lawsuit |  |  |  |  | 3,500 |  |  |  |
DuPont [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Lawsuits alleging illness | lawsuit |  |  |  |  | 51 |  |  |  |
DuPont [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Settlement payments |  |  |  |  | $ 25,000,000 |  |  |  |
DuPont [Member] | Business Seeking to Recover Losses [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Lawsuits alleging illness | lawsuit |  |  |  |  | 2 |  |  |  |
Scheduled In January 2020 [Member] | PFOA MDL Settlement [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of individual plaintiffs | plaintiff |  |  |  |  | 2 |  |  |  |
Scheduled In June 2020 [Member] | PFOA MDL Settlement [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of individual plaintiffs | plaintiff |  |  |  |  | 6 |  |  |  |
AFFF [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of lawsuits pending | lawsuit |  |  |  |  | 8 |  |  |  |
Number of lawsuits filed | lawsuit |  |  |  |  |  |  | 4 |  |
Asbestos Issue [Member] |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Lawsuits alleging personal injury - Filed | lawsuit |  |  |  |  | 1,100 |  |  | 1,300 |
Accrual balance |  |  |  |  | $ 34,000,000 |  |  | $ 37,000,000 |

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