BASIS OF PRESENTATION (Policies)	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The unaudited interim condensed consolidated financial statements of Baxter International Inc. and its subsidiaries (we, our or Baxter) have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC) for interim financial reporting. Accordingly, certain information and note disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) in the United States have been condensed or omitted. These unaudited interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2025 (2025 Annual Report). In the opinion of management, the unaudited interim condensed consolidated financial statements reflect all adjustments necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented. All such adjustments, unless otherwise noted herein, are of a normal, recurring nature. The disclosures presented in our notes to the consolidated financial statements are presented on a continuing operations basis. The results of operations for the current interim period are not necessarily indicative of the results of operations to be expected for the full year. Prior period segment disclosures have been recast to reflect the current period segment structure and presentation. Refer to Notes 4 and 16 for further information regarding these reclassifications.

The unaudited interim condensed consolidated financial statements of Baxter International Inc. and its subsidiaries (we, our or Baxter) have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC) for interim financial reporting. Accordingly, certain information and note disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) in the United States have been condensed or omitted. These unaudited interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2025 (2025 Annual Report).

In the opinion of management, the unaudited interim condensed consolidated financial statements reflect all adjustments necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented. All such adjustments, unless otherwise noted herein, are of a normal, recurring nature. The disclosures presented in our notes to the consolidated financial statements are presented on a continuing operations basis. The results of operations for the current interim period are not necessarily indicative of the results of operations to be expected for the full year.