Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Name:	us-gaap_AccrualForEnvironmentalLossContingencies
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Environmental, Health and Safety Matters (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Site Contingency [Line Items]
Capital expenditures for EHS matters	$ 6	$ 7
Environmental reserves	4		$ 10
Harrisburg Remediation
Site Contingency [Line Items]
Environmental reserves	2
Calais Remediation
Site Contingency [Line Items]
Environmental reserves	1
Duisburg Remediation
Site Contingency [Line Items]
Environmental reserves	$ 1