CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Total Ingersoll Rand Inc. Stockholders’ Equity	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interests
Balance at beginning of period (in shares) at Dec. 31, 2023			428.6
Balance at beginning of period at Dec. 31, 2023	$ 9,846.7	$ 9,783.8	$ 4.3	$ 9,550.8	$ 1,697.2	$ (227.6)	$ (1,240.9)	$ 62.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	391.0	387.2			387.2			3.8
Dividends declared	(16.1)	(16.1)			(16.1)
Issuance of common stock for stock-based compensation plans (in shares)			1.8
Issuance of common stock for stock-based compensation plans	21.3	21.3		21.3
Purchases of treasury stock	(135.5)	(135.5)					(135.5)
Issuance of treasury stock for stock-based compensation plans	1.4	1.4		(5.4)			6.8
Stock-based compensation	28.6	28.6		28.6
Other comprehensive income (loss), net of tax	(113.2)	(112.5)				(112.5)		(0.7)
Balance at end of period (in shares) at Jun. 30, 2024			430.4
Balance at end of period at Jun. 30, 2024	10,024.2	9,958.2	$ 4.3	9,595.3	2,068.3	(340.1)	(1,369.6)	66.0
Balance at beginning of period (in shares) at Mar. 31, 2024			429.7
Balance at beginning of period at Mar. 31, 2024	9,919.7	9,855.3	$ 4.3	9,569.8	1,891.3	(302.6)	(1,307.5)	64.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	186.5	185.0			185.0			1.5
Dividends declared	(8.0)	(8.0)			(8.0)
Issuance of common stock for stock-based compensation plans (in shares)			0.7
Issuance of common stock for stock-based compensation plans	11.2	11.2		11.2
Purchases of treasury stock	(62.6)	(62.6)					(62.6)
Issuance of treasury stock for stock-based compensation plans	0.3	0.3		(0.2)			0.5
Stock-based compensation	14.5	14.5		14.5
Other comprehensive income (loss), net of tax	(37.4)	(37.5)				(37.5)		0.1
Balance at end of period (in shares) at Jun. 30, 2024			430.4
Balance at end of period at Jun. 30, 2024	10,024.2	9,958.2	$ 4.3	9,595.3	2,068.3	(340.1)	(1,369.6)	66.0
Balance at beginning of period (in shares) at Dec. 31, 2024			430.7
Balance at beginning of period at Dec. 31, 2024	10,245.3	10,179.0	$ 4.3	9,633.6	2,503.5	(468.5)	(1,493.9)	66.3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	74.6	71.2			71.2			3.4
Dividends declared	(16.1)	(16.1)			(16.1)
Issuance of common stock for stock-based compensation plans (in shares)			0.8
Issuance of common stock for stock-based compensation plans	8.9	8.9		8.9
Purchases of treasury stock	(514.6)	(514.6)					(514.6)
Issuance of treasury stock for stock-based compensation plans	0.3	0.3		(1.2)			1.5
Stock-based compensation	30.9	30.9		30.9
Other comprehensive income (loss), net of tax	328.1	327.7				327.7		0.4
Balance at end of period (in shares) at Jun. 30, 2025			431.5
Balance at end of period at Jun. 30, 2025	10,157.4	10,087.3	$ 4.3	9,672.2	2,558.6	(140.8)	(2,007.0)	70.1
Balance at beginning of period (in shares) at Mar. 31, 2025			431.4
Balance at beginning of period at Mar. 31, 2025	10,553.7	10,484.8	$ 4.3	9,651.7	2,681.9	(350.5)	(1,502.6)	68.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(113.8)	(115.3)			(115.3)			1.5
Dividends declared	(8.0)	(8.0)			(8.0)
Issuance of common stock for stock-based compensation plans (in shares)			0.1
Issuance of common stock for stock-based compensation plans	3.8	3.8		3.8
Purchases of treasury stock	(504.6)	(504.6)					(504.6)
Issuance of treasury stock for stock-based compensation plans	0.2	0.2		0.0			0.2
Stock-based compensation	16.7	16.7		16.7
Other comprehensive income (loss), net of tax	209.4	209.7				209.7		(0.3)
Balance at end of period (in shares) at Jun. 30, 2025			431.5
Balance at end of period at Jun. 30, 2025	$ 10,157.4	$ 10,087.3	$ 4.3	$ 9,672.2	$ 2,558.6	$ (140.8)	$ (2,007.0)	$ 70.1