Equity - Schedule of Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 39,728	$ 39,475
Net income	1,900	1,707
Other comprehensive income (loss)	79	131
Noncontrolling interests:
Additions (reductions)	0	0
Dividends and other capital changes	(6)	(4)
Dividends to Linde plc ordinary share holders	(741)	(708)
Issuances of ordinary shares:
For employee savings and incentive plans	(131)	(94)
Purchases of ordinary shares	(791)	(1,099)
Share-based compensation	41	42
Balance, end of period	$ 40,079	$ 39,450
Dividends paid (in dollars per share)	$ 1.60	$ 1.50
Linde plc Shareholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 38,245	$ 38,092
Net income	1,857	1,673
Other comprehensive income (loss)	86	126
Noncontrolling interests:
Additions (reductions)	0	0
Dividends and other capital changes	0	0
Dividends to Linde plc ordinary share holders	(741)	(708)
Issuances of ordinary shares:
For employee savings and incentive plans	(131)	(94)
Purchases of ordinary shares	(791)	(1,099)
Share-based compensation	41	42
Balance, end of period	38,566	38,032
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	1,483	1,383
Net income	43	34
Other comprehensive income (loss)	(7)	5
Noncontrolling interests:
Additions (reductions)	0	0
Dividends and other capital changes	(6)	(4)
Dividends to Linde plc ordinary share holders	0	0
Issuances of ordinary shares:
For employee savings and incentive plans	0	0
Purchases of ordinary shares	0	0
Share-based compensation	0	0
Balance, end of period	$ 1,513	$ 1,418