Restructuring Charges - Schedule of Restructuring-Related Activity (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Restructuring Reserve [Roll Forward]
Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag		true
Severance
Restructuring Reserve [Roll Forward]
Beginning balance	$ 5	$ 11
Charges Incurred	35	21
Payments	(28)	(27)
Foreign Exchange and Other	(1)	0
Ending balance	11	5
Corporate
Restructuring Reserve [Roll Forward]
Charges Incurred	16	1
Corporate \| Severance
Restructuring Reserve [Roll Forward]
Beginning balance	1	8
Charges Incurred	10	2
Payments	(4)	(8)
Foreign Exchange and Other	0	(1)
Ending balance	7	1
North American LTL \| Operating Segments
Restructuring Reserve [Roll Forward]
Charges Incurred	1	4
North American LTL \| Operating Segments \| Severance
Restructuring Reserve [Roll Forward]
Beginning balance	3	2
Charges Incurred	4	3
Payments	(5)	(3)
Foreign Exchange and Other	0	1
Ending balance	1	3
European Transportation \| Operating Segments
Restructuring Reserve [Roll Forward]
Charges Incurred	6	1
European Transportation \| Operating Segments \| Severance
Restructuring Reserve [Roll Forward]
Beginning balance	1	1
Charges Incurred	21	16
Payments	(19)	(16)
Foreign Exchange and Other	0	0
Ending balance	$ 3	$ 1

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
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Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag

+ References

No definition available.

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