| Three Months Ended | Six Months Ended | ||||||||||||||||||||||
| June 30, | June 30, | ||||||||||||||||||||||
| In millions except per share amounts | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Operating Revenue | $ | 4,301 | $ | 4,053 | $ | 8,317 | $ | 7,892 | |||||||||||||||
| Cost of revenue | 2,403 | 2,271 | 4,659 | 4,432 | |||||||||||||||||||
| Selling, administrative, and research and development expenses | 735 | 693 | 1,457 | 1,399 | |||||||||||||||||||
| Amortization and impairment of intangible assets | 16 | 21 | 34 | 42 | |||||||||||||||||||
| Operating Income | 1,147 | 1,068 | 2,167 | 2,019 | |||||||||||||||||||
| Interest expense | (79) | (74) | (152) | (142) | |||||||||||||||||||
| Other income (expense) | 12 | 4 | 32 | 16 | |||||||||||||||||||
| Income Before Taxes | 1,080 | 998 | 2,047 | 1,893 | |||||||||||||||||||
| Income Taxes | 265 | 243 | 464 | 438 | |||||||||||||||||||
| Net Income | $ | 815 | $ | 755 | $ | 1,583 | $ | 1,455 | |||||||||||||||
| Net Income Per Share: | |||||||||||||||||||||||
Basic | $ | 2.85 | $ | 2.58 | $ | 5.51 | $ | 4.97 | |||||||||||||||
Diluted | $ | 2.84 | $ | 2.58 | $ | 5.50 | $ | 4.95 | |||||||||||||||
| Cash Dividends Per Share: | |||||||||||||||||||||||
Paid | $ | 1.61 | $ | 1.50 | $ | 3.22 | $ | 3.00 | |||||||||||||||
Declared | $ | 1.61 | $ | 1.50 | $ | 3.22 | $ | 3.00 | |||||||||||||||
| Shares of Common Stock Outstanding During the Period: | |||||||||||||||||||||||
Average | 286.4 | 292.3 | 287.3 | 292.9 | |||||||||||||||||||
Average assuming dilution | 287.0 | 292.9 | 288.1 | 293.7 | |||||||||||||||||||
| In millions | June 30, 2026 | December 31, 2025 | |||||||||
| Assets | |||||||||||
| Current Assets: | |||||||||||
| Cash and equivalents | $ | 839 | $ | 851 | |||||||
| Trade receivables | 3,564 | 3,227 | |||||||||
| Inventories | 1,756 | 1,659 | |||||||||
| Prepaid expenses and other current assets | 441 | 463 | |||||||||
| Total current assets | 6,600 | 6,200 | |||||||||
| Net plant and equipment | 2,235 | 2,230 | |||||||||
| Goodwill | 5,074 | 5,098 | |||||||||
| Intangible assets | 558 | 591 | |||||||||
| Deferred income taxes | 489 | 519 | |||||||||
| Other assets | 1,538 | 1,510 | |||||||||
| $ | 16,494 | $ | 16,148 | ||||||||
| Liabilities and Stockholders' Equity | |||||||||||
| Current Liabilities: | |||||||||||
| Short-term debt | $ | 3,145 | $ | 2,286 | |||||||
| Accounts payable | 636 | 522 | |||||||||
| Accrued expenses | 1,592 | 1,636 | |||||||||
| Cash dividends payable | 457 | 465 | |||||||||
| Income taxes payable | 123 | 217 | |||||||||
| Total current liabilities | 5,953 | 5,126 | |||||||||
| Noncurrent Liabilities: | |||||||||||
| Long-term debt | 6,549 | 6,683 | |||||||||
| Deferred income taxes | 162 | 154 | |||||||||
| Other liabilities | 935 | 959 | |||||||||
| Total noncurrent liabilities | 7,646 | 7,796 | |||||||||
| Stockholders' Equity: | |||||||||||
| Common stock | 6 | 6 | |||||||||
| Additional paid-in-capital | 1,838 | 1,771 | |||||||||
| Retained earnings | 30,812 | 30,150 | |||||||||
| Common stock held in treasury | (28,004) | (26,875) | |||||||||
| Accumulated other comprehensive income (loss) | (1,758) | (1,827) | |||||||||
| Noncontrolling interest | 1 | 1 | |||||||||
| Total stockholders' equity | 2,895 | 3,226 | |||||||||
| $ | 16,494 | $ | 16,148 | ||||||||
Three Months Ended June 30, 2026 | |||||||||||
| Dollars in millions | Total Revenue | Operating Income | Operating Margin | ||||||||
| Automotive OEM | $ | 857 | $ | 185 | 21.6 | % | |||||
| Food Equipment | 692 | 188 | 27.1 | % | |||||||
| Test & Measurement and Electronics | 769 | 193 | 25.2 | % | |||||||
| Welding | 549 | 178 | 32.4 | % | |||||||
| Polymers & Fluids | 476 | 140 | 29.3 | % | |||||||
| Construction Products | 494 | 151 | 30.6 | % | |||||||
| Specialty Products | 468 | 148 | 31.5 | % | |||||||
| Intersegment | (4) | — | — | % | |||||||
| Total Segments | 4,301 | 1,183 | 27.5 | % | |||||||
| Unallocated | — | (36) | — | % | |||||||
| Total Company | $ | 4,301 | $ | 1,147 | 26.7 | % | |||||
Six Months Ended June 30, 2026 | |||||||||||
| Dollars in millions | Total Revenue | Operating Income | Operating Margin | ||||||||
| Automotive OEM | $ | 1,677 | $ | 358 | 21.3 | % | |||||
| Food Equipment | 1,329 | 345 | 26.0 | % | |||||||
| Test & Measurement and Electronics | 1,484 | 357 | 24.1 | % | |||||||
| Welding | 1,056 | 341 | 32.3 | % | |||||||
| Polymers & Fluids | 928 | 266 | 28.7 | % | |||||||
| Construction Products | 952 | 286 | 30.0 | % | |||||||
| Specialty Products | 899 | 283 | 31.4 | % | |||||||
| Intersegment | (8) | — | — | % | |||||||
| Total Segments | 8,317 | 2,236 | 26.9 | % | |||||||
| Unallocated | — | (69) | — | % | |||||||
| Total Company | $ | 8,317 | $ | 2,167 | 26.1 | % | |||||
| Q2 2026 vs. Q2 2025 Favorable/(Unfavorable) | ||||||||||||||||||||||||||
| Operating Revenue | Automotive OEM | Food Equipment | Test & Measurement and Electronics | Welding | Polymers & Fluids | Construction Products | Specialty Products | Total ITW | ||||||||||||||||||
| Organic | (0.4) | % | — | % | 10.0 | % | 13.9 | % | 7.3 | % | 2.0 | % | 1.6 | % | 4.5 | % | ||||||||||
| Acquisitions/ Divestitures | — | % | — | % | 1.3 | % | — | % | — | % | — | % | — | % | 0.2 | % | ||||||||||
| Translation | 1.7 | % | 1.6 | % | 0.8 | % | 0.8 | % | 1.5 | % | 2.3 | % | 1.4 | % | 1.4 | % | ||||||||||
| Operating Revenue | 1.3 | % | 1.6 | % | 12.1 | % | 14.7 | % | 8.8 | % | 4.3 | % | 3.0 | % | 6.1 | % | ||||||||||
| Q2 2026 vs. Q2 2025 Favorable/(Unfavorable) | ||||||||||||||||||||||||||
| Change in Operating Margin | Automotive OEM | Food Equipment | Test & Measurement and Electronics | Welding | Polymers & Fluids | Construction Products | Specialty Products | Total ITW | ||||||||||||||||||
| Operating Leverage | (10) bps | — | 250 bps | 220 bps | 140 bps | 40 bps | 20 bps | 90 bps | ||||||||||||||||||
| Changes in Variable Margin & OH Costs | 20 bps | (60) bps | — | (250) bps | 40 bps | (40) bps | (150) bps | (50) bps | ||||||||||||||||||
| Total Organic | 10 bps | (60) bps | 250 bps | (30) bps | 180 bps | — | (130) bps | 40 bps | ||||||||||||||||||
| Acquisitions/ Divestitures | — | — | (20) bps | — | — | — | — | — | ||||||||||||||||||
| Restructuring/Other | 20 bps | — | 10 bps | (40) bps | (20) bps | (20) bps | 20 bps | — | ||||||||||||||||||
| Total Operating Margin Change | 30 bps | (60) bps | 240 bps | (70) bps | 160 bps | (20) bps | (110) bps | 40 bps | ||||||||||||||||||
| Total Operating Margin % * | 21.6% | 27.1% | 25.2% | 32.4% | 29.3% | 30.6% | 31.5% | 26.7% | ||||||||||||||||||
| * Includes unfavorable operating margin impact of amortization expense from acquisition-related intangible assets | 20 bps | 10 bps | 120 bps | — | 80 bps | 10 bps | 20 bps | 40 bps ** | ||||||||||||||||||
| ** Amortization expense from acquisition-related intangible assets had an unfavorable impact of ($0.04) on GAAP earnings per share for the second quarter of 2026. | ||||||||||||||||||||||||||
| H1 2026 vs. H1 2025 Favorable/(Unfavorable) | ||||||||||||||||||||||||||
| Operating Revenue | Automotive OEM | Food Equipment | Test & Measurement and Electronics | Welding | Polymers & Fluids | Construction Products | Specialty Products | Total ITW | ||||||||||||||||||
| Organic | (0.6) | % | (1.3) | % | 7.4 | % | 10.0 | % | 4.6 | % | 0.4 | % | (1.5) | % | 2.5 | % | ||||||||||
| Acquisitions/ Divestitures | — | % | — | % | 1.5 | % | — | % | — | % | — | % | — | % | 0.3 | % | ||||||||||
| Translation | 3.4 | % | 2.9 | % | 2.0 | % | 1.0 | % | 2.5 | % | 3.5 | % | 2.6 | % | 2.6 | % | ||||||||||
| Operating Revenue | 2.8 | % | 1.6 | % | 10.9 | % | 11.0 | % | 7.1 | % | 3.9 | % | 1.1 | % | 5.4 | % | ||||||||||
| H1 2026 vs. H1 2025 Favorable/(Unfavorable) | ||||||||||||||||||||||||||
| Change in Operating Margin | Automotive OEM | Food Equipment | Test & Measurement and Electronics | Welding | Polymers & Fluids | Construction Products | Specialty Products | Total ITW | ||||||||||||||||||
| Operating Leverage | (10) bps | (20) bps | 200 bps | 160 bps | 90 bps | 20 bps | (30) bps | 50 bps | ||||||||||||||||||
| Changes in Variable Margin & OH Costs | 70 bps | (100) bps | 20 bps | (180) bps | 80 bps | (10) bps | (40) bps | (10) bps | ||||||||||||||||||
| Total Organic | 60 bps | (120) bps | 220 bps | (20) bps | 170 bps | 10 bps | (70) bps | 40 bps | ||||||||||||||||||
| Acquisitions/ Divestitures | — | — | (40) bps | — | — | — | — | — | ||||||||||||||||||
| Restructuring/Other | 40 bps | 10 bps | 20 bps | (30) bps | (10) bps | (10) bps | 30 bps | 10 bps | ||||||||||||||||||
| Total Operating Margin Change | 100 bps | (110) bps | 200 bps | (50) bps | 160 bps | — | (40) bps | 50 bps | ||||||||||||||||||
| Total Operating Margin % * | 21.3% | 26.0% | 24.1% | 32.3% | 28.7% | 30.0% | 31.4% | 26.1% | ||||||||||||||||||
| * Includes unfavorable operating margin impact of amortization expense from acquisition-related intangible assets | 20 bps | — | 130 bps | — | 90 bps | 10 bps | 20 bps | 40 bps ** | ||||||||||||||||||
| ** Amortization expense from acquisition-related intangible assets had an unfavorable impact of ($0.09) on GAAP earnings per share for the first half of 2026. | ||||||||||||||||||||||||||
| Three Months Ended | Six Months Ended | ||||||||||||||||||||||
| June 30, | June 30, | ||||||||||||||||||||||
| Dollars in millions | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Numerator: | |||||||||||||||||||||||
| Net Income | $ | 815 | $ | 755 | $ | 1,583 | $ | 1,455 | |||||||||||||||
| Discrete tax benefit related to the first quarter 2026 | — | — | (34) | — | |||||||||||||||||||
| Discrete tax benefit related to the first quarter 2025 | — | — | — | (21) | |||||||||||||||||||
Interest expense, net of tax (1) | 59 | 56 | 115 | 108 | |||||||||||||||||||
Other (income) expense, net of tax (1) | (9) | (3) | (24) | (12) | |||||||||||||||||||
| Operating income after taxes | $ | 865 | $ | 808 | $ | 1,640 | $ | 1,530 | |||||||||||||||
| Denominator: | |||||||||||||||||||||||
| Invested capital: | |||||||||||||||||||||||
| Cash and equivalents | $ | 839 | $ | 788 | $ | 839 | $ | 788 | |||||||||||||||
| Trade receivables | 3,564 | 3,320 | 3,564 | 3,320 | |||||||||||||||||||
| Inventories | 1,756 | 1,710 | 1,756 | 1,710 | |||||||||||||||||||
| Net plant and equipment | 2,235 | 2,177 | 2,235 | 2,177 | |||||||||||||||||||
| Goodwill and intangible assets | 5,632 | 5,596 | 5,632 | 5,596 | |||||||||||||||||||
| Accounts payable and accrued expenses | (2,228) | (2,157) | (2,228) | (2,157) | |||||||||||||||||||
| Debt | (9,694) | (8,937) | (9,694) | (8,937) | |||||||||||||||||||
| Other, net | 791 | 714 | 791 | 714 | |||||||||||||||||||
| Total net assets (stockholders' equity) | 2,895 | 3,211 | 2,895 | 3,211 | |||||||||||||||||||
| Cash and equivalents | (839) | (788) | (839) | (788) | |||||||||||||||||||
| Debt | 9,694 | 8,937 | 9,694 | 8,937 | |||||||||||||||||||
| Total invested capital | $ | 11,750 | $ | 11,360 | $ | 11,750 | $ | 11,360 | |||||||||||||||
Average invested capital (2) | $ | 11,650 | $ | 10,996 | $ | 11,548 | $ | 10,741 | |||||||||||||||
Net income to average invested capital (3) | 28.0 | % | 27.4 | % | 27.4 | % | 27.1 | % | |||||||||||||||
After-tax return on average invested capital (3) | 29.7 | % | 29.4 | % | 28.4 | % | 28.5 | % | |||||||||||||||
| Six Months Ended | |||||||||||
| June 30, 2026 | |||||||||||
| Dollars in millions | Income Taxes | Tax Rate | |||||||||
| As reported | $ | 464 | 22.6 | % | |||||||
| Discrete tax benefit related to the first quarter 2026 | 34 | 1.7 | % | ||||||||
| As adjusted | $ | 498 | 24.3 | % | |||||||
| Six Months Ended | |||||||||||
| June 30, 2025 | |||||||||||
| Dollars in millions | Income Taxes | Tax Rate | |||||||||
| As reported | $ | 438 | 23.1 | % | |||||||
| Discrete tax benefit related to the first quarter 2025 | 21 | 1.1 | % | ||||||||
| As adjusted | $ | 459 | 24.2 | % | |||||||
| Twelve Months Ended | |||||
| Dollars in millions | December 31, 2025 | ||||
| Numerator: | |||||
| Net income | $ | 3,066 | |||
| Net discrete tax benefit related to the third quarter 2025 | (27) | ||||
| Discrete tax benefit related to the first quarter 2025 | (21) | ||||
Interest expense, net of tax (1) | 222 | ||||
Other (income) expense, net of tax (1) | (32) | ||||
| Operating income after taxes | $ | 3,208 | |||
| Denominator: | |||||
| Invested capital: | |||||
| Cash and equivalents | $ | 851 | |||
| Trade receivables | 3,227 | ||||
| Inventories | 1,659 | ||||
| Net plant and equipment | 2,230 | ||||
| Goodwill and intangible assets | 5,689 | ||||
| Accounts payable and accrued expenses | (2,158) | ||||
| Debt | (8,969) | ||||
| Other, net | 697 | ||||
| Total net assets (stockholders' equity) | 3,226 | ||||
| Cash and equivalents | (851) | ||||
| Debt | 8,969 | ||||
| Total invested capital | $ | 11,344 | |||
Average invested capital (2) | $ | 10,959 | |||
| Net income to average invested capital | 28.0 | % | |||
| After-tax return on average invested capital | 29.3 | % | |||
| Twelve Months Ended | |||||||||||
| December 31, 2025 | |||||||||||
| Dollars in millions | Income Taxes | Tax Rate | |||||||||
| As reported | $ | 900 | 22.7 | % | |||||||
| Net discrete tax benefit related to the third quarter 2025 | 27 | 0.7 | % | ||||||||
| Discrete tax benefit related to the first quarter 2025 | 21 | 0.5 | % | ||||||||
| As adjusted | $ | 948 | 23.9 | % | |||||||
| Three Months Ended | Six Months Ended | ||||||||||||||||||||||
| June 30, | June 30, | ||||||||||||||||||||||
| Dollars in millions | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Net cash provided by operating activities | $ | 723 | $ | 550 | $ | 1,346 | $ | 1,142 | |||||||||||||||
| Less: Additions to plant and equipment | (92) | (101) | (187) | (197) | |||||||||||||||||||
| Free cash flow | $ | 631 | $ | 449 | $ | 1,159 | $ | 945 | |||||||||||||||
| Net income | $ | 815 | $ | 755 | $ | 1,583 | $ | 1,455 | |||||||||||||||
| Net cash provided by operating activities to net income conversion rate | 89 | % | 73 | % | 85 | % | 78 | % | |||||||||||||||
| Free cash flow to net income conversion rate | 77 | % | 59 | % | 73 | % | 65 | % | |||||||||||||||