Income Taxes - Changes in the Valuation Allowance for Deferred Tax Assets (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Changes In The Valuation Allowance For Deferred Tax Assets, Valuation Allowance [Roll Forward]
Beginning balance	$ 3,679	$ 3,295	$ 2,907
Additions charged to income tax expense and other accounts	910	469	433
Deductions from reserves	(91)	(84)	(45)
Ending balance	$ 4,498	$ 3,679	$ 3,295

Changes In The Valuation Allowance For Deferred Tax Assets, Valuation Allowance

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- Definition

Valuation Allowance, Deferred Tax Asset, Additions Charged To Income Tax Expense And Other Accounts

+ References

No definition available.

+ Details

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- Definition

Valuation Allowance, Deferred Tax Asset, Deductions From Reserves

+ References

No definition available.

+ Details

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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
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

+ Details

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