Commitments and Contingencies (Details) $ in Millions	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 30, 2022	Apr. 23, 2019 € / shares	Apr. 08, 2019 shares
Other Commitments [Line Items]
Brazil tax matters estimated exposure	$ 115
Contingent liability	2,901	$ 2,950
RusChemAlliance (RCA)
Other Commitments [Line Items]
Contingent liability	$ 1,200
Russia
Other Commitments [Line Items]
Maximum allowed percent of net assets for asset disposal			5.00%
Linde AG | Squeeze-Out Transaction
Other Commitments [Line Items]
Business acquisition, share price (in euro per share) | € / shares				€ 189.46
Ordinary shares, outstanding (in shares) | shares					14,763,113