| USD ($) $ in Millions | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 | Dec 31, 2017 | Dec 31, 2016 | Dec 31, 2015 | Dec 31, 2014 | Dec 31, 2013 | Dec 31, 2012 | Dec 31, 2011 | Dec 31, 2010 | Dec 31, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current assets: | |||||||||||||||||
Cash and cash equivalents | $ 9,852 | $ 4,009 | $ 8,077 | ||||||||||||||
Short-term investments | 253 | 1,561 | - | ||||||||||||||
Accounts receivable, less allowances of $147 and $173 | 8,900 | 8,191 | 8,221 | ||||||||||||||
Inventories | 5,425 | 4,978 | 5,088 | ||||||||||||||
Contract assets, net | 1,666 | 1,435 | 1,443 | ||||||||||||||
Refundable income taxes | - | - | - | ||||||||||||||
Deferred tax assets | - | - | - | ||||||||||||||
Other current assets | 2,612 | 1,964 | 1,760 | ||||||||||||||
Total current assets | 28,707 | 22,137 | 24,589 | ||||||||||||||
Property, plant and equipment, net | 10,565 | 9,306 | 9,448 | ||||||||||||||
Acquisition-related intangible assets, net | 15,838 | 15,533 | 16,670 | ||||||||||||||
Other assets | 5,871 | 4,492 | 3,999 | ||||||||||||||
Goodwill | 49,362 | 45,853 | 44,020 | ||||||||||||||
Total assets | 110,343 | 97,321 | 98,726 | ||||||||||||||
Liabilities, redeemable noncontrolling interest and equity | |||||||||||||||||
Current liabilities: | |||||||||||||||||
Short-term obligations and current maturities of long-term obligations | 3,533 | 2,214 | 3,609 | ||||||||||||||
Accounts payable | 3,622 | 3,079 | 2,872 | ||||||||||||||
Accrued payroll and employee benefits | 1,995 | 1,988 | 1,596 | ||||||||||||||
Contract liabilities | 2,710 | 2,852 | 2,689 | ||||||||||||||
Accrued income taxes | - | - | - | ||||||||||||||
Deferred revenue | - | - | - | ||||||||||||||
Other accrued expenses | 3,329 | 3,199 | 3,246 | ||||||||||||||
Total current liabilities | 15,189 | 13,332 | 14,012 | ||||||||||||||
Deferred income taxes | 1,493 | 1,268 | 1,922 | ||||||||||||||
Other long-term liabilities | 4,273 | 3,989 | 4,642 | ||||||||||||||
Long-term obligations | 35,852 | 29,061 | 31,308 | ||||||||||||||
Redeemable noncontrolling interest | 122 | 120 | 118 | ||||||||||||||
Equity: | |||||||||||||||||
Incremental Convertible Debt Obligation | - | - | - | ||||||||||||||
Thermo Fisher Scientific Inc. shareholders’ equity: | |||||||||||||||||
Preferred stock, $100 par value, 50,000 shares authorized; none issued | 0 | - | - | ||||||||||||||
Common stock, $1 par value, 1,200,000,000 shares authorized; 445,160,301 and 443,841,240 shares issued | 445 | 444 | 442 | ||||||||||||||
Capital in excess of par value | 18,563 | 17,962 | 17,286 | ||||||||||||||
Retained earnings | 59,156 | 53,102 | 47,364 | ||||||||||||||
Treasury stock at cost, 68,938,831 and 63,066,906 shares | 22,309 | 19,226 | 15,133 | ||||||||||||||
Accumulated other comprehensive income/(loss) | (2,448) | (2,697) | (3,224) | ||||||||||||||
Total Thermo Fisher Scientific Inc. shareholders’ equity | 53,407 | 49,584 | 46,735 | ||||||||||||||
Noncontrolling interests | 7 | (33) | (11) | ||||||||||||||
Total equity | 53,415 | 49,551 | 46,724 | ||||||||||||||
Total liabilities, redeemable noncontrolling interest and equity | $ 110,343 | $ 97,321 | $ 98,726 |