Fair Value - Schedule of Fair Value Measurements, Assets, Using Significant Unobservable Inputs (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period	$ 6	$ 127	$ 0	$ 16
Recorded in revenue	0	(5)	3	(3)
Recorded in other comprehensive income	0	0	0	0
Purchases	9	2	12	109
Sales	0	0	0	0
Settlements	0	(1)	0	0
Transfers into Level 3	0	0	0	15
Transfers out of Level 3	0	(121)	0	(135)
Fair value, end of period	15	2	15	2
Change in Unrealized Gains (Losses) Related to Financial Instruments Held as of June 30, 2022	2	0	4	(1)
Total derivative instruments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period	6	6	0	2
Recorded in revenue	0	(5)	3	(3)
Recorded in other comprehensive income	0	0	0	0
Purchases	9	2	12	3
Sales	0	0	0	0
Settlements	0	(1)	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair value, end of period	15	2	15	2
Change in Unrealized Gains (Losses) Related to Financial Instruments Held as of June 30, 2022	2	0	4	(1)
Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period	6	6	0	2
Recorded in revenue	0	(5)	3	(3)
Recorded in other comprehensive income	0	0	0	0
Purchases	9	2	12	3
Sales	0	0	0	0
Settlements	0	(1)	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair value, end of period	15	2	15	2
Change in Unrealized Gains (Losses) Related to Financial Instruments Held as of June 30, 2022	$ 2	0	$ 4	(1)
Collateralized loan obligations
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period		106		14
Recorded in revenue		0		0
Recorded in other comprehensive income		0		0
Purchases		0		106
Sales		0		0
Settlements		0		0
Transfers into Level 3		0		0
Transfers out of Level 3		(106)		(120)
Fair value, end of period		0		0
Total asset-backed securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period		106		14
Recorded in revenue		0		0
Recorded in other comprehensive income		0		0
Purchases		0		106
Sales		0		0
Settlements		0		0
Transfers into Level 3		0		0
Transfers out of Level 3		(106)		(120)
Fair value, end of period		0		0
Other U.S. debt securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period		15		0
Recorded in revenue		0		0
Recorded in other comprehensive income		0		0
Purchases		0		0
Sales		0		0
Settlements		0		0
Transfers into Level 3		0		15
Transfers out of Level 3		(15)		(15)
Fair value, end of period		0		0
Available-for-sale securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value, beginning of period		121		14
Recorded in revenue		0		0
Recorded in other comprehensive income		0		0
Purchases		0		106
Sales		0		0
Settlements		0		0
Transfers into Level 3		0		15
Transfers out of Level 3		(121)		(135)
Fair value, end of period		$ 0		$ 0

Change in Unrealized Gains (Losses) Related to Financial Instruments, Assets, Held at Period End

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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- Definition

Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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- Definition

Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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