Segment Information - Reportable Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Sales by Major Country [Line Items]
Total Sales	$ 32,854	$ 33,364	$ 30,793
Total operating profit	8,024	5,369	4,984
Other charges (Note 3)	(40)	(1,029)	(273)
Total depreciation and amortization	3,816	4,204	4,635
Total Capital Expenditures and Acquisitions	4,740	3,283	3,174
Total long-lived assets	24,552	23,548	26,003
United States
Sales by Major Country [Line Items]
Total Sales	10,566	10,553	9,123
Total long-lived assets	8,490	7,663	7,659
Germany
Sales by Major Country [Line Items]
Total Sales	2,827	3,662	3,601
Total long-lived assets	1,584	1,678	2,003
China
Sales by Major Country [Line Items]
Total Sales	2,585	2,643	2,562
Total long-lived assets	2,063	2,176	2,385
United Kingdom
Sales by Major Country [Line Items]
Total Sales	1,507	1,954	2,060
Total long-lived assets	684	704	1,078
Australia
Sales by Major Country [Line Items]
Total Sales	1,303	1,372	1,307
Total long-lived assets	654	688	872
Brazil
Sales by Major Country [Line Items]
Total Sales	1,302	1,158	1,065
Total long-lived assets	836	720	705
Other – non-U.S.
Sales by Major Country [Line Items]
Total Sales	12,764	12,022	11,075
Total long-lived assets	10,241	9,919	11,301
Americas
Sales by Major Country [Line Items]
Total Sales	14,304	13,874	12,103
EMEA
Sales by Major Country [Line Items]
Total Sales	8,542	8,443	7,643
APAC
Sales by Major Country [Line Items]
Total Sales	6,559	6,480	6,133
Engineering
Sales by Major Country [Line Items]
Total Sales	$ 2,160	$ 2,762	$ 2,867
Engineering | Germany | Revenue from Contract with Customer, Segment Benchmark | Geographic Concentration Risk
Sales by Major Country [Line Items]
Concentration risk, percentage	35.00%	44.00%	53.00%
Other
Sales by Major Country [Line Items]
Total Sales	$ 1,289	$ 1,805	$ 2,047
Operating Segments
Sales by Major Country [Line Items]
Total operating profit	9,070	7,904	7,176
Operating Segments | Americas
Sales by Major Country [Line Items]
Total Sales	14,304	13,874	12,103
Total operating profit	4,244	3,732	3,368
Other charges (Note 3)		(4)	0
Total depreciation and amortization	1,423	1,320	1,243
Total Capital Expenditures and Acquisitions	2,999	1,698	1,354
Operating Segments | EMEA
Sales by Major Country [Line Items]
Total Sales	8,542	8,443	7,643
Total operating profit	2,486	2,013	1,889
Other charges (Note 3)		(751)	(238)
Total depreciation and amortization	640	661	752
Total Capital Expenditures and Acquisitions	635	550	669
Operating Segments | APAC
Sales by Major Country [Line Items]
Total Sales	6,559	6,480	6,133
Total operating profit	1,806	1,670	1,502
Other charges (Note 3)		(28)	22
Total depreciation and amortization	633	593	611
Total Capital Expenditures and Acquisitions	975	889	995
Operating Segments | Engineering
Sales by Major Country [Line Items]
Total Sales	2,160	2,762	2,867
Total operating profit	491	555	473
Other charges (Note 3)		(205)	(26)
Total depreciation and amortization	33	33	39
Total Capital Expenditures and Acquisitions	24	28	25
Operating Segments | Other
Sales by Major Country [Line Items]
Total Sales	1,289	1,805	2,047
Total operating profit	43	(66)	(56)
Other charges (Note 3)		(41)	(31)
Total depreciation and amortization	96	116	127
Total Capital Expenditures and Acquisitions	107	118	131
Segment Reconciling Items
Sales by Major Country [Line Items]
Other charges (Note 3)	(40)	(1,029)	(273)
Purchase accounting impacts - Linde AG	(1,006)	(1,506)	(1,919)
Total depreciation and amortization	2,825	2,723	2,772
Purchase accounting impacts - Linde AG	991	1,481	1,863
Intersegment Eliminations | Engineering
Sales by Major Country [Line Items]
Total Sales	$ 1,479	$ 1,035	$ 896