Equity - Schedule of Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 39,973	$ 39,538	$ 39,475	$ 41,082
Net income	1,972	1,603	5,485	4,968
Other comprehensive income (loss)	(165)	764	507	(250)
Noncontrolling interests:
Additions (reductions)	16	(1)	30	10
Dividends and other capital changes	(54)	(23)	(99)	(87)
Dividends to Linde plc ordinary share holders	(701)	(662)	(2,113)	(1,996)
Issuances of ordinary shares:
For employee savings and incentive plans	(22)	(1)	(140)	(142)
Purchases of ordinary shares	(992)	(670)	(3,205)	(3,115)
Share-based compensation	45	42	133	120
Balance, end of period	$ 40,073	$ 40,590	$ 40,073	$ 40,590
Dividends paid (in dollars per share)	$ 1.50	$ 1.39	$ 4.50	$ 4.17
Linde plc Shareholders’ Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 38,515	$ 38,179	$ 38,092	$ 39,720
Net income	1,929	1,550	5,368	4,840
Other comprehensive income (loss)	(159)	735	485	(254)
Noncontrolling interests:
Additions (reductions)	0	0	(4)	0
Dividends and other capital changes	0	0	0	0
Dividends to Linde plc ordinary share holders	(701)	(662)	(2,113)	(1,996)
Issuances of ordinary shares:
For employee savings and incentive plans	(22)	(1)	(140)	(142)
Purchases of ordinary shares	(992)	(670)	(3,205)	(3,115)
Share-based compensation	45	42	133	120
Balance, end of period	38,616	39,173	38,616	39,173
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	1,458	1,359	1,383	1,362
Net income	43	53	117	128
Other comprehensive income (loss)	(6)	29	22	4
Noncontrolling interests:
Additions (reductions)	16	(1)	34	10
Dividends and other capital changes	(54)	(23)	(99)	(87)
Dividends to Linde plc ordinary share holders	0	0	0	0
Issuances of ordinary shares:
For employee savings and incentive plans	0	0	0	0
Purchases of ordinary shares	0	0	0	0
Share-based compensation	0	0	0	0
Balance, end of period	$ 1,457	$ 1,417	$ 1,457	$ 1,417