Basis of Presentation	12 Months Ended
Basis of Presentation	Dec. 31, 2025
Basis of Presentation [Abstract]
Basis of Presentation	Basis of Presentation The consolidated financial statements include the accounts of Crown Castle Inc. and its predecessor, as applicable (together, "CCI"), and their subsidiaries, collectively referred to herein as the "Company." All significant intercompany balances and transactions have been eliminated in consolidation. As used herein, the term "including," and any variation thereof, means "including without limitation." The use of the word "or" herein is not exclusive. Unless the context suggests otherwise, references to "U.S." are to the United States of America and Puerto Rico, collectively. The Company owns, operates and leases towers that are geographically dispersed throughout the U.S., including (1) towers and other structures, such as rooftops (collectively, "towers"), and (2) fiber primarily supporting small cell networks ("small cells") and fiber solutions. The Company's towers, small cells and fiber assets are collectively referred to herein as "communications infrastructure," and the Company's customers on its communications infrastructure are referred to herein as "tenants." On March 13, 2025, the Company signed a definitive agreement (“Strategic Fiber Agreement”) to sell its Fiber segment, together with certain supporting assets and personnel ("Fiber Business"), with Zayo Group Holdings Inc. ("Zayo") acquiring the fiber solutions business and EQT Active Core Infrastructure fund ("EQT") acquiring the small cell business ("Strategic Fiber Transaction"). Under the Strategic Fiber Agreement, the Company will receive $8.5 billion in aggregate cash proceeds, subject to certain closing adjustments. The Company intends to use a significant portion of the proceeds from the sale to repay outstanding indebtedness. See note 8 to the Company''s consolidated financial statements for a discussion of the Company's indebtedness. As the aforementioned sale represents a material strategic shift for the Company, the Fiber Business' results and net assets are presented herein as discontinued operations and comparable prior periods have been recast to reflect this change. The Company recorded a loss from disposal of discontinued operations of $1.6 billion for the year ended December 31, 2025 related to the classification of the Fiber Business as "held for sale", which represents the excess of the carrying value of the Fiber Business over the purchase price, less estimated costs to sell. The Strategic Fiber Transaction is expected to close in the first half of 2026, subject to certain closing conditions and required government and regulatory approvals. Pending the closing of the Strategic Fiber Transaction, we will continue to operate the Fiber Business in accordance with the Strategic Fiber Agreement. See note 3 to our consolidated financial statements for a further discussion of discontinued operations. Following the classification of the Fiber Business as discontinued operations, the Company has one reportable segment that constitutes consolidated results consisting of its towers operations. Unless otherwise noted, all activities and amounts reported in the following notes relate to the continuing operations of the Company and exclude activities and amounts related to discontinued operations. See notes 3 and 15 to the Company's consolidated financial statements for a discussion of discontinued operations and the Company's operating segment. Approximately 55% of the Company's towers are leased or subleased or operated and managed under master leases, subleases, and other agreements with AT&T and T-Mobile (including those which T-Mobile assumed in its merger with Sprint). The Company has the option to purchase these towers at the end of their respective lease terms. The Company has no obligation to exercise such purchase options. See notes 5 and 14. As part of the Company's effort to provide comprehensive tower solutions, as an ancillary business, the Company also offers certain services. For the periods presented, such services predominately consisted of (1) site development services relating to existing or new tenant equipment installations, including: site acquisition, architectural and engineering, or zoning and permitting (collectively, "site development services") and (2) tenant equipment installation and subsequent augmentations (collectively, "installation services"). See note 17 to the Company's consolidated financial statements for a discussion of (1) the Company's July 2023 restructuring plan ("2023 Restructuring Plan"), which included discontinuing installation services as a towers product offering and (2) the Company's June 2024 restructuring plan ("2024 Restructuring Plan," and together with the 2023 Restructuring Plan, "2023 and 2024 Restructuring Plans"). The Company operates as a REIT for U.S. federal income tax purposes. In addition, the Company has certain taxable REIT subsidiaries ("TRSs"). See note 10. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

CROWN CASTLE INC. 10-K