Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions			3 Months Ended
	Feb. 01, 2022	Oct. 01, 2021	Mar. 31, 2022
Business Acquisition [Line Items]
Goodwill acquired during the period			$ 119
Boral Target Companies
Business Acquisition [Line Items]
Intangible assets		$ 952
Goodwill acquired during the period		771
Total purchase consideration		2,132
Finite-Lived Customer Relationships, Gross		$ 645
Hexion
Business Acquisition [Line Items]
Cash	$ 42
Accounts receivable	299
Inventories	346
Prepaid expenses and other current assets	21
Property, plant and equipment	667
Operating lease right-of-use assets	66
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	96
Total assets acquired	1,692
Accounts payable	191
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	84
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	94
Business Combination, Pensions and other post-retirement benefits	163
Operating lease liabilities	51
Other long-term liabilities	19
Total liabilities assumed	602
Total identifiable net assets acquired	1,090
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value	(2)
Goodwill acquired during the period	119
Total purchase consideration	1,207
Finite-Lived Trade Names, Gross	75
Finite-Lived License Agreements, Gross	50
Finite-Lived Customer Relationships, Gross	$ 30