Income Tax - Gross Deferred Tax Assets on Tax Loss Carryforwards and Investment Credits Expiration (Detail) $ in Millions	Dec. 31, 2023 USD ($)
Income Tax Disclosure [Abstract]
2024	$ 3
2025	2
2026	2
2027	4
2028	3
Thereafter	872
Total	$ 886

Deferred tax assets on tax loss carryforwards and investment credits expiration thereafter.

No definition available.

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- Definition

Deferred tax assets on tax loss carryforwards and investment credits expiration year five.

+ References

No definition available.

+ Details

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- Definition

Deferred tax assets on tax loss carryforwards and investment credits expiration year four.

+ References

No definition available.

+ Details

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- Definition

Deferred tax assets on tax loss carryforwards and investment credits expiration year one.

+ References

No definition available.

+ Details

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- Definition

Deferred tax assets on tax loss carryforwards and investment credits expiration year three.

+ References

No definition available.

+ Details

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- Definition

Deferred tax assets on tax loss carryforwards and investment credits expiration year two.

+ References

No definition available.

+ Details

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-6

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-8

+ Details

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- References

No definition available.

+ Details

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