External segment sales disaggregated by product and service are as follows:
| | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, | | | | (In millions) | | 2026 | | 2025 | | | | | | Sales Type | | | | | | | | | | Product | | $ | 2,214 | | | $ | 2,319 | | | | | | | Service | | 287 | | | 253 | | | | | | | Climate Solutions Americas sales | | 2,501 | | | 2,572 | | | | | | | | | | | | | | | | Product | | 1,154 | | | 1,071 | | | | | | | Service | | 139 | | | 98 | | | | | | | Climate Solutions Europe sales | | 1,293 | | | 1,169 | | | | | | | | | | | | | | | | Product | | 642 | | | 660 | | | | | | | Service | | 192 | | | 166 | | | | | | | Climate Solutions Asia Pacific, Middle East & Africa sales | | 834 | | | 826 | | | | | | | | | | | | | | | | Product | | 657 | | | 602 | | | | | | | Service | | 56 | | | 49 | | | | | | | Climate Solutions Transportation sales | | 713 | | | 651 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Net sales | | $ | 5,341 | | | $ | 5,218 | | | | | |
Geographic external sales are attributed to the geographic regions based on their location of origin. With the exception of the United States as presented in the table below, there were no individually significant countries with sales exceeding 10% of total sales during the three months ended March 31, 2026 and 2025.
| | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended March 31, | | | | (In millions) | | 2026 | | 2025 | | | | | | United States | | $ | 2,657 | | | $ | 2,738 | | | | | | | International: | | | | | | | | | | Europe | | 1,549 | | | 1,401 | | | | | | | Asia Pacific | | 986 | | | 941 | | | | | | | Other | | 149 | | | 138 | | | | | | | Net sales | | $ | 5,341 | | | $ | 5,218 | | | | | |
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