Commitments and Contingencies (Additional Information) (Detail) - USD ($) $ in Millions						1 Months Ended	6 Months Ended
	Aug. 02, 2021	Jul. 04, 2021	Jun. 20, 2021	May 22, 2019	Jun. 18, 2018	May 31, 2017	Jun. 30, 2021	Dec. 31, 2020
Environmental Loss Contingencies [Line Items]
Environmental Loss contingency accrual							$ 53	$ 53
Site Contingency, Percentage of Cost Potentially of Other Responsible Parties [Line Items]							100.00%
Boral Target Companies
Environmental Loss Contingencies [Line Items]
Business interest acquired			100.00%
Payments to acquire business			$ 2,150
Amount of contingent consideration			$ 65
Lasco Fittings, Inc. | Subsequent Event
Environmental Loss Contingencies [Line Items]
Payments to acquire business		$ 253
Dimex, LLC | Subsequent Event
Environmental Loss Contingencies [Line Items]
Payments to acquire business	$ 170
Avient
Environmental Loss Contingencies [Line Items]
Site Contingency, Percentage of Cost Potentially of Other Responsible Parties [Line Items]				100.00%
Avient | Pending Litigation
Environmental Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value						$ 11
Minimum
Environmental Loss Contingencies [Line Items]
Environmental Exit Costs, Reasonably Possible Additional Loss							$ 65
Maximum
Environmental Loss Contingencies [Line Items]
Environmental Exit Costs, Reasonably Possible Additional Loss							130
EPA | Operation and Maintenance
Environmental Loss Contingencies [Line Items]
Environmental Remediation Expense					$ 107
EPA | Operation and Maintenance | Minimum
Environmental Loss Contingencies [Line Items]
Environmental Exit Costs, Anticipated Cost							1
EPA | Operation and Maintenance | Maximum
Environmental Loss Contingencies [Line Items]
Environmental Exit Costs, Anticipated Cost							$ 3