Derivative Instruments and Hedging Transactions - Notional and Fair Value of Outstanding Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Notional	$ 19,312	$ 17,615
Fair Value Asset	6	17
Fair Value Liability	(770)	(902)
Cross currency swap agreements
Derivative [Line Items]
Fair Value Liability	(648)	(801)
Designated as Hedging Instrument
Derivative [Line Items]
Notional	8,444	10,560
Fair Value Asset	1	14
Fair Value Liability	(764)	(897)
Designated as Hedging Instrument \| Fair Value Hedging \| Interest rate swap agreements
Derivative [Line Items]
Notional	2,071	4,068
Fair Value Asset	0	14
Fair Value Liability	(111)	(93)
Designated as Hedging Instrument \| Cash Flow Hedging \| Foreign currency exchange contracts
Derivative [Line Items]
Notional	234	353
Fair Value Asset	1	0
Fair Value Liability	(5)	(3)
Designated as Hedging Instrument \| Net Investment Hedging \| Cross currency swap agreements
Derivative [Line Items]
Notional	6,139	6,139
Fair Value Asset	0	0
Fair Value Liability	(648)	(801)
Derivatives not designated as hedging instruments \| Foreign currency exchange contracts
Derivative [Line Items]
Notional	10,868	7,055
Fair Value Asset	5	3
Fair Value Liability	$ (6)	$ (5)

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483444/210-20-55-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483444/210-20-55-21

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483444/210-20-55-20

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483444/210-20-55-15

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483466/210-20-50-3

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Period Type:	instant