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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Fair Value Level Input and Input Definitions

Assets and liabilities recorded at fair value in the Consolidated Balance Sheets are categorized based upon observable or unobservable inputs used to estimate fair value. Level inputs are as follows: 

Level Input:						Input Definition:
Level I						Inputs are unadjusted, quoted prices for identical assets or liabilities in active markets at the measurement date.
Level II						Inputs other than quoted prices included in Level I that are observable for the asset or liability through corroboration with market data at the measurement date.
Level III						Unobservable inputs that reflect management's best estimate of what market participants would use in pricing the asset or liability at the measurement date.

Schedule of Fair Value Measurements by Level for Assets Measured at Fair Value on a Recurring Basis

The following table summarizes fair value measurements by level at December 31, 2025, for assets and liabilities measured at fair value on a recurring basis ($ in millions):

			Level I						Level II						Level III						Total
Assets
Cash and cash equivalents			$	17,888					$	—					$	—					$	17,888
Investments:
U.S. Treasury securities and obligations of U.S. government corporations and agencies			$	55					$	—					$	—					$	55
Corporate securities			—						10,652						—						10,652
Municipal securities			—						2,906						—						2,906
Short-term time deposits			—						205						—						205
Asset-backed securities			—						1,666						—						1,666
Residential mortgage-backed securities			—						1,714						—						1,714
Commercial mortgage-backed securities			—						1,136						—						1,136
Equity securities			—						1						—						1
Total investments			$	55					$	18,280					$	—					$	18,335
Restricted deposits:
Cash and cash equivalents			$	69					$	—					$	—					$	69
U.S. Treasury securities and obligations of U.S. government corporations and agencies			480						—						—						480
Corporate securities			—						10						—						10
Certificates of deposit			—						1						—						1
Municipal securities			—						852						—						852
Total restricted deposits			$	549					$	863					$	—					$	1,412
Total assets at fair value			$	18,492					$	19,143					$	—					$	37,635

The following table summarizes fair value measurements by level at December 31, 2024, for assets and liabilities measured at fair value on a recurring basis ($ in millions):

			Level I						Level II						Level III						Total
Assets
Cash and cash equivalents			$	14,063					$	—					$	—					$	14,063
Investments:
U.S. Treasury securities and obligations of U.S. government corporations and agencies			$	58					$	—					$	—					$	58
Corporate securities			—						10,505						—						10,505
Municipal securities			—						3,272						—						3,272
Short-term time deposits			—						425						—						425
Asset-backed securities			—						1,812						—						1,812
Residential mortgage-backed securities			—						1,679						—						1,679
Commercial mortgage-backed securities			—						1,239						—						1,239
Equity securities			13						1						—						14
Total investments			$	71					$	18,933					$	—					$	19,004
Restricted deposits:
Cash and cash equivalents			$	93					$	—					$	—					$	93
U.S. Treasury securities and obligations of U.S. government corporations and agencies			533						—						—						533
Corporate securities			—						2						—						2
Certificates of deposit			—						4						—						4
Municipal securities			—						758						—						758
Total restricted deposits			$	626					$	764					$	—					$	1,390
Total assets at fair value			$	14,760					$	19,697					$	—					$	34,457

X

- Definition

Fair Value, Assets and Liabilities, Based Upon Observable or Unobservable Inputs, Level Input Definitions

+ References

No definition available.

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X

- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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