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Employee Benefits - Schedule of Fair Value of Defined Benefit Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	$ 1,395	$ 1,473
Total
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	907	1,028
Level 1
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	2	3
Level 2
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	905	991
Level 3
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	0	34
Common collective trust funds measured at net asset value as a practical expedient
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	488	445
Cash and short-term investments | Total
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	2	3
Cash and short-term investments | Level 1
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	2	3
Cash and short-term investments | Level 2
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	0	0
Cash and short-term investments | Level 3
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	0	0
Long duration strategy | Total
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	905	991
Long duration strategy | Level 1
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	0	0
Long duration strategy | Level 2
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	905	991
Long duration strategy | Level 3
Fair value of defined benefit plans assets by asset class
Fair value of plan assets	$ 0	0
Real Estate: U.K. | Total
Fair value of defined benefit plans assets by asset class
Fair value of plan assets		34
Real Estate: U.K. | Level 1
Fair value of defined benefit plans assets by asset class
Fair value of plan assets		0
Real Estate: U.K. | Level 2
Fair value of defined benefit plans assets by asset class
Fair value of plan assets		0
Real Estate: U.K. | Level 3
Fair value of defined benefit plans assets by asset class
Fair value of plan assets		$ 34

X

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480482/715-20-55-17

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(02)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-Paragraph 1
-Subparagraph (d)(iv)(01)
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
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-Paragraph 1
-Subparagraph (d)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

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- References

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