v3.22.4

Income Taxes - Expiration Periods of Deferred Tax Asset​s (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Asset Expiration [Line Items]
Tax loss carryforwards	$ 181	$ 206
Employee benefits	264	331
Other	156
Valuation allowance	(70)	(90)	$ (91)	$ (113)
Deferred tax assets, net	531	$ 622
Expires within 10 years
Deferred Tax Asset Expiration [Line Items]
Tax loss carryforwards	42
Employee benefits	0
Other	0
Valuation allowance	(42)
Deferred tax assets, net	0
Expires within 11-20 years
Deferred Tax Asset Expiration [Line Items]
Tax loss carryforwards	31
Employee benefits	0
Other	1
Valuation allowance	0
Deferred tax assets, net	32
No Expiration
Deferred Tax Asset Expiration [Line Items]
Tax loss carryforwards	108
Employee benefits	0
Other	42
Valuation allowance	(7)
Deferred tax assets, net	143
Other
Deferred Tax Asset Expiration [Line Items]
Tax loss carryforwards	0
Employee benefits	264
Other	113
Valuation allowance	(21)
Deferred tax assets, net	$ 356

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- Definition

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+ References

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- Definition

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+ References

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- Definition

Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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