v3.25.4

Summary of significant accounting policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value | Derivatives recognized in the consolidated balance sheets at December 31 are as follows:
(In millions) | 2025 | 2024
Cash Flow Hedges |  |
Other current assets | $— | $1
Other current liabilities | 1 | 7
Other noncurrent liabilities | — | 3
Schedule of Property, Plant and Equipment | The estimated useful lives of property, plant and equipment (excluding land with raw material reserves) are generally as follows:
Buildings and installations | 20 to 35 years
Machines | 10 to 30 years
Furniture, vehicles and tools | 3 to 10 years
Property, plant and equipment, net was as follows:
|  | As of December 31,
(In millions) |  | 2025 |  | 2024
Land and mineral reserves |  | $3,337 |  | $3,361
Buildings and installations |  | 3,027 |  | 2,948
Machines, furniture, vehicles and tools |  | 9,552 |  | 9,001
Construction in progress |  | 470 |  | 439
Finance lease right-of-use assets |  | 547 |  | 334
Total property, plant and equipment |  | 16,933 |  | 16,083
Less: accumulated depreciation, depletion and impairment |  | (8,998) |  | (8,549)
Property, plant and equipment, net |  | $7,935 |  | $7,534
Schedule of Finite-Lived Intangible Assets | The estimated useful lives of long-lived intangible assets are as follows:
Customer lists | 8 to 20 years
Patented and unpatented technology | 8 to 20 years
Software | 3 years
Trademarks, brand and other marketing-related items | 15 to 25 years
|  | As of December 31, 2025
(In millions) |  | Gross carrying amount |  | Accumulated amortization |  | Total intangible assets, net
Customer relationships |  | $1,649 |  | $(399) |  | $1,250
Mining rights |  | 256 |  | (57) |  | 199
Developed technology |  | 182 |  | (65) |  | 117
Software |  | 83 |  | (77) |  | 6
Trade names and trademarks |  | 226 |  | (87) |  | 139
Other intangible assets |  | 101 |  | (84) |  | 17
Intangible assets |  | $2,497 |  | $(769) |  | $1,728
|  | As of December 31, 2024
(In millions) |  | Gross carrying amount |  | Accumulated amortization |  | Total intangible assets, net
Customer relationships |  | $1,626 |  | $(311) |  | $1,315
Mining rights |  | 252 |  | (51) |  | 201
Developed technology |  | 177 |  | (45) |  | 132
Software |  | 81 |  | (75) |  | 6
Trade names and trademarks |  | 230 |  | (76) |  | 154
Other intangible assets |  | 103 |  | (79) |  | 24
Intangible assets |  | $2,469 |  | $(637) |  | $1,832
Schedule Of Leased Assets, Useful Lives | The estimated useful lives of the related leased assets are the lesser of the lease term or the following:
Land | Indefinite
Rail fleet and equipment | 25 years
Machinery and equipment | 10 to 30 years
Buildings and construction | 20 to 35 years
Furniture and fixtures | 3 to 10 years
Land fleet equipment | 3 to 15 years

X
- Definition Schedule Of Leased Assets, Useful Lives + References No definition available. + Details
Name: | holcim_ScheduleOfLeasedAssetsUsefulLivesTableTextBlock
Namespace Prefix: | holcim_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4B + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name Accounting Standards Codification -Section 55 -Paragraph 40 -SubTopic 30 -Topic 350 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration