Equity - Schedule of Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 39,475	$ 41,082
Net income	1,707	1,665
Other comprehensive income (loss)	131	(738)
Noncontrolling interests:
Additions (reductions)	0	11
Dividends and other capital changes	(4)	(9)
Dividends to Linde plc ordinary share holders	(708)	(669)
Issuances of ordinary shares:
For employee savings and incentive plans	(94)	(126)
Purchases of ordinary shares	(1,099)	(1,038)
Share-based compensation	42	38
Balance, end of period	$ 39,450	$ 40,216
Dividends paid (in dollars per share)	$ 1.50	$ 1.39
Linde plc Shareholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 38,092	$ 39,720
Net income	1,673	1,627
Other comprehensive income (loss)	126	(723)
Noncontrolling interests:
Additions (reductions)	0	0
Dividends and other capital changes	0	0
Dividends to Linde plc ordinary share holders	(708)	(669)
Issuances of ordinary shares:
For employee savings and incentive plans	(94)	(126)
Purchases of ordinary shares	(1,099)	(1,038)
Share-based compensation	42	38
Balance, end of period	38,032	38,829
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	1,383	1,362
Net income	34	38
Other comprehensive income (loss)	5	(15)
Noncontrolling interests:
Additions (reductions)	0	11
Dividends and other capital changes	(4)	(9)
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	$ 1,418	$ 1,387