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Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash and Cash Equivalents

Cash, cash equivalents and restricted cash are included in the following line items in the condensed consolidated balance sheets:

			At September 30,						At December 31,						Increase / (Decrease)
(dollars in millions)			2025						2024
Cash and cash equivalents			$	7,706					$	4,194					$	3,512
Restricted cash:
Prepaid expenses and other			303						319						(16)
Other assets			147						122						25
Cash, cash equivalents and restricted cash			$	8,156					$	4,635					$	3,521

Schedule of Restricted Cash

Cash, cash equivalents and restricted cash are included in the following line items in the condensed consolidated balance sheets:

			At September 30,						At December 31,						Increase / (Decrease)
(dollars in millions)			2025						2024
Cash and cash equivalents			$	7,706					$	4,194					$	3,512
Restricted cash:
Prepaid expenses and other			303						319						(16)
Other assets			147						122						25
Cash, cash equivalents and restricted cash			$	8,156					$	4,635					$	3,521

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- Definition

Tabular disclosure of the components of cash and cash equivalents.

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- Definition

Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(1)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

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