Stock-Based Compensation Plans	6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation Plans	Stock-Based Compensation Plans Stock-based compensation cost, which is recognized in Selling, general, and administrative expenses in the Consolidated Statements of Operations, was $6 million and $11 million for the three and six months ended June 30, 2026, respectively, and $6 million and $12 million for the three and six months ended June 30, 2025, respectively. For all periods prior to the Spin-off, the Consolidated Statements of Operations reflect an allocation of these expenses on a specific identification basis for employees who exclusively supported the Company or, when specific identification is not practicable, a proportional cost allocation method primarily based on revenue or directly identifiable actual costs, depending on the nature of the services. Restricted Stock Units During the six months ended June 30, 2026, the Company granted 214,097 restricted stock units (“RSUs”) pursuant to the Solstice 2025 Stock Incentive Plan (the “2025 Plan”) to certain employees. The RSUs typically will vest in equal annual installments over a three-year period, subject to the employee’s continued employment. Recipients of RSUs receive dividend equivalents that are paid subject to the same vesting restrictions as the underlying award. The weighted-average fair value per share of the RSUs granted was $79.27. Performance Stock Units During the six months ended June 30, 2026, the Company granted 143,180 performance stock units (“PSUs”) pursuant to the 2025 Plan to certain employees. The PSUs typically will vest after the end of a three-year performance period consisting of the Company’s fiscal years 2026 through 2028, to the extent earned based on the achievement of specified performance goals related to adjusted earnings per share and return on invested capital, subject to a modifier based on relative total shareholder return, and further subject to the employees’ continued employment through the end of the performance period. The fair value of the PSUs was determined using a Monte Carlo simulation on the grant date. Recipients of PSUs receive dividend equivalents that are paid subject to the same vesting restrictions as the underlying award. The fair value per share of the PSUs granted was $92.42.

Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2026

Share-Based Payment Arrangement [Abstract]

Stock-based compensation cost, which is recognized in Selling, general, and administrative expenses in the Consolidated Statements of Operations, was $6 million and $11 million for the three and six months ended June 30, 2026, respectively, and $6 million and $12 million for the three and six months ended June 30, 2025, respectively.

For all periods prior to the Spin-off, the Consolidated Statements of Operations reflect an allocation of these expenses on a specific identification basis for employees who exclusively supported the Company or, when specific identification is not practicable, a proportional cost allocation method primarily based on revenue or directly identifiable actual costs, depending on the nature of the services.

Restricted Stock Units

During the six months ended June 30, 2026, the Company granted 214,097 restricted stock units (“RSUs”) pursuant to the Solstice 2025 Stock Incentive Plan (the “2025 Plan”) to certain employees. The RSUs typically will vest in equal annual installments over a three-year period, subject to the employee’s continued employment. Recipients of RSUs receive dividend equivalents that are paid subject to the same vesting restrictions as the underlying award. The weighted-average fair value per share of the RSUs granted was $79.27.

Performance Stock Units

During the six months ended June 30, 2026, the Company granted 143,180 performance stock units (“PSUs”) pursuant to the 2025 Plan to certain employees. The PSUs typically will vest after the end of a three-year performance period consisting of the Company’s fiscal years 2026 through 2028, to the extent earned based on the achievement of specified performance goals related to adjusted earnings per share and return on invested capital, subject to a modifier based on relative total shareholder return, and further subject to the employees’ continued employment through the end of the performance period. The fair value of the PSUs was determined using a Monte Carlo simulation on the grant date. Recipients of PSUs receive dividend equivalents that are paid subject to the same vesting restrictions as the underlying award. The fair value per share of the PSUs granted was $92.42.