Pay vs Performance Disclosure

12 Months Ended

Dec. 31, 2024

USD ($)

Dec. 31, 2023

USD ($)

Dec. 31, 2022

USD ($)

Dec. 31, 2021

USD ($)

Dec. 31, 2020

USD ($)

Pay vs Performance Disclosure

Pay vs Performance Disclosure, Table

					Average		Average		Value of Initial Fixed $100 Investment Based On:
Year	Summary Compensation Table Total for PEO($)		Compensation Actually Paid to PEO($)(1,2)		Summary Compensation Table Total for Non-PEOs ($)		Compensation Actually Paid to Non-PEOs ($)(1,2)		Total Shareholder Return(3)		Peer Group Total Shareholder Return(3,5)		Net Income ($) (in millions)		After-Tax ROIC(4)
(a)	(b)		(c)		(d)		(e)		(f)		(g)		(h)		(i)
2024	$	10,932,645	$	10,957,848	$	3,797,000	$	2,364,323	$	158.55	$	192.35	$	3,488		31.2	%
2023	$	22,507,817	$	34,771,926	$	4,752,472	$	7,292,609	$	160.11	$	157.77	$	2,957		30.4	%
2022	$	22,234,230	$	18,730,022	$	4,328,857	$	3,805,988	$	131.72	$	137.00	$	3,034		29.1	%
2021	$	20,787,622	$	41,769,292	$	5,010,034	$	9,056,648	$	143.87	$	143.81	$	2,694		29.5	%
2020	$	14,007,356	$	19,593,737	$	3,374,951	$	4,317,669	$	116.40	$	119.83	$	2,109		26.2	%

Company Selected Measure Name

After-tax ROIC

Named Executive Officers, Footnote

(a)E. Scott Santi served as our PEO from 2020 through 2023. In 2024, Christopher A. O'Herlihy served as our PEO. For 2020, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, Steven L. Martindale and John R. Hartnett. For 2021, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, John R. Hartnett and Mary K. Lawler. For 2022, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, Mary K. Lawler, Michael R. Zimmerman and Lei Z. Schlitz. For 2023, our non-PEO NEOs included Christopher A. O'Herlihy, Michael M. Larsen, Mary K. Lawler and Axel R.J. Beck. For 2024, our non-PEO NEOs included Michael M. Larsen, Axel R.J. Beck, T. Kenneth Escoe, Mary K. Lawler and E. Scott Santi.

Peer Group Issuers, Footnote

(5)The table below details the peer group used in the Pay Versus Performance table above and is the same peer group used to show our performance in our Annual Report on Form 10-K for purposes of Item 201(e) of Regulation S-K. The peer group consists of the same companies for 2020, 2021, 2022, 2023, and 2024. As disclosed in our 2020 Form 10-K, in 2020, Ecolab Inc., which meets the Company's industry and size criteria, and Trane Technologies plc, which is the company resulting from the spin-off of Ingersoll-Rand plc and its combination with certain businesses of Gardner Denver, Inc., were added to the peer group, while Ingersoll-Rand plc and Raytheon Company, which merged with United Technologies Corporation and no longer meets the Company's industry and size criteria, were removed.

Peer Group

3M Company	Ecolab Inc.	Parker-Hannifin Corporation
Caterpillar Inc.	Emerson Electric Co.	PPG Industries, Inc.
Cummins Inc.	Fortive Corporation	Rockwell Automation, Inc.
Deere & Company	General Dynamics Corporation	Stanley Black & Decker, Inc.
Dover Corporation	Honeywell International Inc.	Trane Technologies plc
Eaton Corporation plc	Johnson Controls International plc

PEO Total Compensation Amount

$ 10,932,645

$ 22,507,817

$ 22,234,230

$ 20,787,622

$ 14,007,356

PEO Actually Paid Compensation Amount

$ 10,957,848

34,771,926

18,730,022

41,769,292

19,593,737

Adjustment To PEO Compensation, Footnote

(1)The table below reconciles the PEO and average non-PEO compensation as it appears in the Summary Compensation Table (SCT) to the Compensation Actually Paid (CAP) in the Pay Versus Performance Table.

	2024
	PEO(a)			Average Non-PEO NEO(a)
	Christopher A. O'Herlihy			Michael M. Larsen, Axel R.J. Beck, T. Kenneth Escoe, Mary K. Lawler, E. Scott Santi (retired)
SCT Total	$	10,932,645		$	3,797,000
Reported fair value of equity awards granted during fiscal year(b)	$	(6,562,418	)	$	(1,324,327	)
Fair value as of the end of year for equity awards granted during the year	$	7,519,880		$	1,417,835
Fair value of equity compensation granted during the year that vested during the year	$	—		$	86,982
Change in fair value from end of prior fiscal year to vesting date for awards made in prior years that vested during the covered year	$	(256,407	)	$	(276,667	)
Change in fair value from end of prior year to end of covered year for awards made in prior fiscal years that were unvested at end of covered year	$	(519,225	)	$	(576,041	)
Deduction of fair value for awards forfeited during the covered year(c)	$	—		$	(708,797	)
Dividends or other earnings paid on unvested awards otherwise not reflected in total compensation	$	—		$	—
Pension values reported in SCT(d)	$	(156,627	)	$	(84,303	)
Pension values attributable to covered year's service	$	—		$	32,641
Change in pension value attributable to plan amendments made in the covered year	$	—		$	—
CAP Total	$	10,957,848		$	2,364,323

(a)E. Scott Santi served as our PEO from 2020 through 2023. In 2024, Christopher A. O'Herlihy served as our PEO. For 2020, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, Steven L. Martindale and John R. Hartnett. For 2021, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, John R. Hartnett and Mary K. Lawler. For 2022, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, Mary K. Lawler, Michael R. Zimmerman and Lei Z. Schlitz. For 2023, our non-PEO NEOs included Christopher A. O'Herlihy, Michael M. Larsen, Mary K. Lawler and Axel R.J. Beck. For 2024, our non-PEO NEOs included Michael M. Larsen, Axel R.J. Beck, T. Kenneth Escoe, Mary K. Lawler and E. Scott Santi.

(b)Represents the total amounts reported in the "Stock Awards" and "Option Awards" columns in the SCT in the covered year.

(c)Amount for average non-PEO NEOs includes awards forfeited by E. Scott Santi in connection with his retirement.

(d)Represents the change in actuarial present value of the accumulated pension benefit reported in the "Change in Pension Value and Nonqualified Deferred Compensation Earnings" column in the SCT in the covered year. Excess interest earnings on the ECRIP that are reported in the "Change in Pension Value and Nonqualified Deferred Compensation Earnings" in the SCT have not been subtracted to determine CAP.

Non-PEO NEO Average Total Compensation Amount

$ 3,797,000

4,752,472

4,328,857

5,010,034

3,374,951

Non-PEO NEO Average Compensation Actually Paid Amount

$ 2,364,323

7,292,609

3,805,988

9,056,648

4,317,669

Adjustment to Non-PEO NEO Compensation Footnote

(1)The table below reconciles the PEO and average non-PEO compensation as it appears in the Summary Compensation Table (SCT) to the Compensation Actually Paid (CAP) in the Pay Versus Performance Table.

	2024
	PEO(a)			Average Non-PEO NEO(a)
	Christopher A. O'Herlihy			Michael M. Larsen, Axel R.J. Beck, T. Kenneth Escoe, Mary K. Lawler, E. Scott Santi (retired)
SCT Total	$	10,932,645		$	3,797,000
Reported fair value of equity awards granted during fiscal year(b)	$	(6,562,418	)	$	(1,324,327	)
Fair value as of the end of year for equity awards granted during the year	$	7,519,880		$	1,417,835
Fair value of equity compensation granted during the year that vested during the year	$	—		$	86,982
Change in fair value from end of prior fiscal year to vesting date for awards made in prior years that vested during the covered year	$	(256,407	)	$	(276,667	)
Change in fair value from end of prior year to end of covered year for awards made in prior fiscal years that were unvested at end of covered year	$	(519,225	)	$	(576,041	)
Deduction of fair value for awards forfeited during the covered year(c)	$	—		$	(708,797	)
Dividends or other earnings paid on unvested awards otherwise not reflected in total compensation	$	—		$	—
Pension values reported in SCT(d)	$	(156,627	)	$	(84,303	)
Pension values attributable to covered year's service	$	—		$	32,641
Change in pension value attributable to plan amendments made in the covered year	$	—		$	—
CAP Total	$	10,957,848		$	2,364,323

(a)E. Scott Santi served as our PEO from 2020 through 2023. In 2024, Christopher A. O'Herlihy served as our PEO. For 2020, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, Steven L. Martindale and John R. Hartnett. For 2021, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, John R. Hartnett and Mary K. Lawler. For 2022, our non-PEO NEOs included Michael M. Larsen, Christopher A. O'Herlihy, Mary K. Lawler, Michael R. Zimmerman and Lei Z. Schlitz. For 2023, our non-PEO NEOs included Christopher A. O'Herlihy, Michael M. Larsen, Mary K. Lawler and Axel R.J. Beck. For 2024, our non-PEO NEOs included Michael M. Larsen, Axel R.J. Beck, T. Kenneth Escoe, Mary K. Lawler and E. Scott Santi.

(b)Represents the total amounts reported in the "Stock Awards" and "Option Awards" columns in the SCT in the covered year.

(c)Amount for average non-PEO NEOs includes awards forfeited by E. Scott Santi in connection with his retirement.

(d)Represents the change in actuarial present value of the accumulated pension benefit reported in the "Change in Pension Value and Nonqualified Deferred Compensation Earnings" column in the SCT in the covered year. Excess interest earnings on the ECRIP that are reported in the "Change in Pension Value and Nonqualified Deferred Compensation Earnings" in the SCT have not been subtracted to determine CAP.

Equity Valuation Assumption Difference, Footnote

(2)In determining CAP, ITW calculated the fair value of outstanding and vested equity awards in the applicable fiscal year in accordance with SEC rules for CAP, and computed in a manner consistent with the methodology used for financial reporting purposes. For performance share units (PSUs), CAP values are based on year-end share price (or the price on the vesting date for vested awards), and estimates as to the number of PSUs that were likely to vest at the conclusion of the performance period. For stock options, the valuations are based on a lattice-based option pricing model that incorporates a range of assumptions for inputs to determine the fair value for CAP purposes.

Compensation Actually Paid vs. Total Shareholder Return

Relationship Between Compensation Actually Paid (CAP) and Performance Metrics

The charts below illustrate the relationship between Compensation Actually Paid to both the PEO and average Non-PEO to performance metrics required for disclosure: (a) TSR based on the value of an initial fixed $100 invested in ITW Common Stock and ITW's 2024 Peer Group, including the reinvestment of dividends, (b) net income, and (c) After-tax ROIC.

Compensation Actually Paid vs TSR	Compensation Actually Paid vs Net Income	Compensation Actually Paid vs After-tax ROIC*
		* After-tax ROIC is a non-GAAP measure. See Appendix A for information regarding this non-GAAP measure.

Compensation Actually Paid vs. Net Income

Relationship Between Compensation Actually Paid (CAP) and Performance Metrics

The charts below illustrate the relationship between Compensation Actually Paid to both the PEO and average Non-PEO to performance metrics required for disclosure: (a) TSR based on the value of an initial fixed $100 invested in ITW Common Stock and ITW's 2024 Peer Group, including the reinvestment of dividends, (b) net income, and (c) After-tax ROIC.

Compensation Actually Paid vs TSR	Compensation Actually Paid vs Net Income	Compensation Actually Paid vs After-tax ROIC*
		* After-tax ROIC is a non-GAAP measure. See Appendix A for information regarding this non-GAAP measure.

Compensation Actually Paid vs. Company Selected Measure

Relationship Between Compensation Actually Paid (CAP) and Performance Metrics

The charts below illustrate the relationship between Compensation Actually Paid to both the PEO and average Non-PEO to performance metrics required for disclosure: (a) TSR based on the value of an initial fixed $100 invested in ITW Common Stock and ITW's 2024 Peer Group, including the reinvestment of dividends, (b) net income, and (c) After-tax ROIC.

Compensation Actually Paid vs TSR	Compensation Actually Paid vs Net Income	Compensation Actually Paid vs After-tax ROIC*
		* After-tax ROIC is a non-GAAP measure. See Appendix A for information regarding this non-GAAP measure.

Tabular List, Table

After-tax ROIC

Operating Margin

EPS Growth

Organic Revenue Growth

Operating Income Growth vs. Prior Year

Total Shareholder Return Amount

$ 158.55

160.11

131.72

143.87

116.4

Peer Group Total Shareholder Return Amount

192.35

157.77

137

143.81

119.83

Net Income (Loss)

$ 3,488,000,000

$ 2,957,000,000

$ 3,034,000,000

$ 2,694,000,000

$ 2,109,000,000

Company Selected Measure Amount

0.312

0.304

0.291

0.295

0.262

PEO Name

Christopher A. O'Herlihy

E. Scott Santi

E. Scott Santi

E. Scott Santi

E. Scott Santi

Additional 402(v) Disclosure

(3)Total shareholder return assumes $100 invested on December 31, 2019, including reinvestment of dividends. Total shareholder return prior to 2024 were adjusted to reflect a spin-off transaction from one of our peers.

Measure:: 1

Pay vs Performance Disclosure

Name

After-tax ROIC

Non-GAAP Measure Description

After-tax return on average invested capital (After-tax ROIC) is a non-GAAP measure. See Appendix A for information regarding non-GAAP measures. After-tax ROIC is an important financial performance measure used by ITW to measure financial performance and link executive compensation to company performance.

Measure:: 2

Pay vs Performance Disclosure

Name

Operating Margin

Measure:: 3

Pay vs Performance Disclosure

Name

EPS Growth

Measure:: 4

Pay vs Performance Disclosure

Name

Organic Revenue Growth

Measure:: 5

Pay vs Performance Disclosure

Name

Operating Income Growth vs. Prior Year

PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 7,519,880

PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(519,225)

PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(256,407)

PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

PEO | Adjustment, Reported Fair Value Of Equity Awards Granted During Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(6,562,418)

PEO | Adjustment, Fair Value Of Equity Compensation Granted During The Year That Vested During The Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

PEO | Adjustment, Deduction Of Fair Value For Awards Forfeited During The Covered Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

PEO | Adjustment, Pension Values Reported In SCT [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(156,627)

PEO | Adjustment, Pension values Attributable To Covered Year's Service [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

PEO | Adjustment, Change In Pension Value Attributable To Plan Amendments Made In The Covered Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

1,417,835

Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(576,041)

Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(276,667)

Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

0

Non-PEO NEO | Adjustment, Reported Fair Value Of Equity Awards Granted During Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(1,324,327)

Non-PEO NEO | Adjustment, Fair Value Of Equity Compensation Granted During The Year That Vested During The Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

86,982

Non-PEO NEO | Adjustment, Deduction Of Fair Value For Awards Forfeited During The Covered Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(708,797)

Non-PEO NEO | Adjustment, Pension Values Reported In SCT [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(84,303)

Non-PEO NEO | Adjustment, Pension values Attributable To Covered Year's Service [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

32,641

Non-PEO NEO | Adjustment, Change In Pension Value Attributable To Plan Amendments Made In The Covered Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 0