Commitments and Contingencies (Details) R$ in Millions, $ in Millions	Jun. 30, 2019 USD ($)	Apr. 23, 2019 € / shares	Apr. 08, 2019 shares	Oct. 31, 2018 shares	Sep. 01, 2010 USD ($)	Sep. 01, 2010 BRL (R$)
Other Commitments [Line Items]
Brazil tax matters estimated exposure | $	$ 210
White Martins
Other Commitments [Line Items]
Initial CADE civil fine imposed					$ 574	R$ 2,200
Revised CADE civil fine					444	1,700
Linde Gaes Ltda.
Other Commitments [Line Items]
Initial CADE civil fine imposed					62	237
Revised CADE civil fine					$ 49	R$ 188
Linde AG
Other Commitments [Line Items]
Linde AG shares outstanding (in shares) | shares			14,763,113	170,875,000
Squeeze-Out Transaction | Linde AG
Other Commitments [Line Items]
Cash consideration per share | € / shares		€ 189.46