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INCOME TAXES
 6 Months Ended
Jun. 30, 2026
Income Tax Disclosure [Abstract]  
INCOME TAXES INCOME TAXES
Three Months Ended June 30,Six Months Ended June 30,
Dollars in millions2026202520262025
Earnings/(Loss) before income taxes
$4,086 $1,773 $7,326 $4,744 
Income tax provision
770 460 1,331 969 
Effective tax rate18.8 %25.9 %18.2 %20.4 %

Provision for income taxes in interim periods is determined based on the estimated annual effective tax rates and the tax impact of discrete items that are reflected immediately. The decreases in the effective tax rates for the second quarter of 2026 and year-to-date were primarily driven by jurisdictional earnings mix, including the impact of amortization of acquired intangible assets, partially offset by the income tax impact of the BioNTech collaboration in 2025.

Additional changes to the effective tax rate may occur in future periods due to various reasons, including changes to the estimated pretax earnings mix and tax reserves and revised interpretations or changes to the tax code.

BMS is currently under examination by a number of tax authorities that proposed or are considering proposing material adjustments to tax positions for issues such as transfer pricing, certain tax credits and the deductibility of certain expenses. As previously disclosed, BMS received several notices of proposed adjustments from the IRS related to transfer pricing and other tax issues for the 2008 to 2012 tax years. BMS disagrees with the IRS's positions and continues to work cooperatively with the IRS to resolve these issues. In 2022, BMS entered the IRS administrative appeals process to resolve these matters, and that appeals process is ongoing. Timing of the final resolution of these complex matters is uncertain and could have a material impact on BMS's consolidated financial statements. BMS believes that it has adequately provided for all open tax years by jurisdiction.