Business Developments and Risks and Uncertainties (Schedule of Discontinued Operations Components of Assets and Liabilities Held for Sale) (Detail) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Assets held for sale
Accounts receivable	$ 0	$ 2
Goodwill	0	11
Other assets	0	1
Loss on disposal group	0	(6)
Total assets held for sale	0	8
Liabilities held for sale
Accounts payable	0	1
Debt	0	0
Accrued expenses and other	0	5
Total liabilities held for sale	$ 0	$ 6

Disposal group including discontinued operation debt.

No definition available.

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- Definition

Disposal group including discontinued operation loss on disposal group current.

+ References

No definition available.

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- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 10
-SubTopic 20
-Topic 205
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483475/205-20-45-10

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
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-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-7

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
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-Paragraph 5C
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-Topic 360
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-Paragraph 3
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- References

No definition available.

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- Definition

Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of.

+ References

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- Definition

Amount classified as accounts payable attributable to disposal group held for sale or disposed of.

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- Definition

Amount classified as goodwill attributable to disposal group held for sale or disposed of.

+ References

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- Definition

Amount classified as other assets attributable to disposal group held for sale or disposed of.

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- Definition

Amount classified as other liabilities attributable to disposal group held for sale or disposed of.

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- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of.

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- References

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