Earnings Per Share – Linde plc Shareholders (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator (Millions of dollars)
Income from continuing operations	$ 372	$ 840	$ 1,546	$ 1,819
Income from discontinued operations	0	1	0	2
Net Income – Linde plc	$ 372	$ 841	$ 1,546	$ 1,821
Denominator (Thousands of shares)
Weighted average shares outstanding (in shares)	500,535,000	518,552,000	503,626,000	520,314,000
Shares earned and issuable under compensation plans (in shares)	499,000	398,000	467,000	377,000
Weighted average shares used in basic earnings per share (in shares)	501,034,000	518,950,000	504,093,000	520,691,000
Effect of dilutive securities
Stock options and awards (in shares)	4,235,000	4,773,000	4,339,000	4,689,000
Weighted average shares used in diluted earnings per share (in shares)	505,269,000	523,723,000	508,432,000	525,380,000
Basic earnings per share from continuing operations (in dollars per share)	$ 0.74	$ 1.62	$ 3.07	$ 3.49
Basic earnings per share from discontinued operations (in dollars per share)	0	0	0	0
Basic earnings per share (in dollars per share)	0.74	1.62	3.07	3.49
Diluted earnings per share from continuing operations (in dollars per share)	0.74	1.60	3.04	3.46
Diluted earnings per share from discontinued operations (in dollars per share)	0	0	0	0
Diluted earnings per share (in dollars per share)	$ 0.74	$ 1.60	$ 3.04	$ 3.46
Antidilutive shares excluded from computation of earnings per share (in shares)	0	0	0	0