v3.20.4

Commitments and Contingencies - Narrative (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) individual | Dec. 31, 2019 USD ($)
Commitment And Contingencies [Line Items] |  |
Purchase commitments | $ 372,000,000 |
Accrued potential and current legal fees | 17,000,000 | $ 44,000,000
Insurance reimbursements | 8,000,000 | $ 25,000,000
Insurance reimbursement of claims potential maximum exposure | $ 15,000,000 |
Number of individuals affected by birth defects | individual | 18 |
Environmental remediation costs | $ 87,000,000 |
Minimum |  |
Commitment And Contingencies [Line Items] |  |
Range of possible loss | 0 |
Maximum |  |
Commitment And Contingencies [Line Items] |  |
Range of possible loss | $ 23,000,000 |

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