Organization and Basis of Presentation (Accounts Payable Finance Program) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Organization And Basis Of Presentation [Line Items]
Confirmed obligations	$ 13	$ 23
Piedmont
Organization And Basis Of Presentation [Line Items]
Confirmed obligations	$ 13	$ 23

Amount of obligation for supplier finance program.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 405
-SubTopic 50
-Name Accounting Standards Codification
-Section 55
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477128/405-50-55-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479468/405-50-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479468/405-50-50-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 50
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479468/405-50-50-4

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 50
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147479468/405-50-50-3

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
-SubTopic 50
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-Section 50
-Paragraph 3
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479468/405-50-50-3

Name:	us-gaap_SupplierFinanceProgramObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant