Acquisitions (Business Acquisition) (Details) - USD ($) $ in Millions			12 Months Ended
	Feb. 01, 2022	Oct. 01, 2021	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill			$ 124	$ 943
Hexion
Business Acquisition [Line Items]
Cash	$ 42
Accounts receivable	299
Inventories	346
Prepaid expenses and other current assets	22
Property, plant and equipment	665
Operating lease right-of-use assets	59
Intangible assets	145
Other assets	104
Total assets acquired	1,682
Accounts payable	189
Accrued and other liabilities	84
Deferred income taxes	97
Pensions and other post-retirement benefits	163
Operating lease liabilities	48
Other liabilities	19
Total liabilities assumed	600
Total identifiable net assets acquired	1,082
Noncontrolling interest	(2)
Goodwill	127
Total purchase consideration	$ 1,207
Boral Target Companies
Business Acquisition [Line Items]
Cash		$ 5
Accounts receivable		119
Inventories		156
Prepaid expenses and other current assets		3
Property, plant and equipment		482
Operating lease right-of-use assets		87
Intangible assets		952
Other assets		18
Total assets acquired		1,822
Accounts payable		46
Accrued and other liabilities		105
Deferred income taxes		243
Operating lease liabilities		73
Other liabilities		2
Total liabilities assumed		469
Total identifiable net assets acquired		1,353
Goodwill		787
Total purchase consideration		$ 2,140