Earnings Per Share - Linde PLC Shareholders (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator (Millions of dollars)
Income from continuing operations	$ 6,199	$ 4,147	$ 3,821
Income from discontinued operations, net of tax	0	0	5
Net Income – Linde plc	$ 6,199	$ 4,147	$ 3,826
Denominator (Thousands of shares)
Weighted average shares outstanding (in shares)	487,656,000	499,254,000	516,507,000
Shares earned and issuable under compensation plans (in shares)	535,000	482,000	389,000
Weighted average shares used in basic earnings per share (in shares)	488,191,000	499,736,000	516,896,000
Effect of dilutive securities
Stock options and awards (in shares)	4,099,000	4,302,000	4,979,000
Weighted average shares used in diluted earnings per share (in shares)	492,290,000	504,038,000	521,875,000
Basic earnings per share from continuing operations (in dollars per share)	$ 12.70	$ 8.30	$ 7.39
Basic earnings per share from discontinued operations (in dollars per share)	0	0	0.01
Basic earnings per share (in dollars per share)	12.70	8.30	7.40
Diluted earnings per share from continuing operations (in dollars per share)	12.59	8.23	7.32
Diluted earnings per share from discontinued operations (in dollars per share)	0	0	0.01
Diluted earnings per share (in dollars per share)	$ 12.59	$ 8.23	$ 7.33
Antidilutive excluded from the computation of earnings per share (in shares)	0	0	0