| USD ($) $ in Millions | Jun 30, 2026 | Mar 31, 2026 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Sep 30, 2022 | Jun 30, 2022 | Mar 31, 2022 | Sep 30, 2021 | Jun 30, 2021 | Mar 31, 2021 | Sep 30, 2020 | Jun 30, 2020 | Mar 31, 2020 | Sep 30, 2019 | Jun 30, 2019 | Mar 31, 2019 | Sep 30, 2018 | Sep 30, 2017 |
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Assets | |||||||||||||||||||||||||
Consolidated Balance Sheets [Abstract] | |||||||||||||||||||||||||
Cash and cash equivalents | $ 4,898 | $ 3,959 | $ 4,509 | $ 4,786 | $ 5,294 | $ 5,187 | $ 4,626 | $ 4,848 | $ 3,894 | $ 3,357 | $ 4,962 | $ 3,756 | |||||||||||||
Accounts receivable - net | 5,632 | 5,321 | 5,331 | 5,230 | 4,950 | 4,871 | 5,001 | 5,009 | 4,692 | 4,799 | 4,753 | 4,599 | |||||||||||||
Contract assets | 432 | 321 | 228 | 260 | 293 | 255 | 226 | 217 | 151 | 156 | 175 | 104 | |||||||||||||
Inventories | 2,122 | 2,079 | 2,128 | 2,122 | 1,984 | 2,087 | 2,094 | 2,100 | 2,078 | 2,079 | 2,054 | 1,855 | |||||||||||||
Assets held for sale | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Prepaid and other current assets | 1,092 | 1,071 | 1,135 | 1,229 | 1,076 | 1,060 | 896 | 928 | 922 | 1,020 | 960 | 889 | |||||||||||||
Total Current Assets | 14,176 | 12,751 | 13,331 | 13,627 | 13,597 | 13,460 | 12,843 | 13,102 | 11,737 | 11,411 | 12,904 | 11,203 | |||||||||||||
Property, plant and equipment - net | 29,170 | 28,564 | 27,535 | 26,928 | 25,710 | 25,124 | 24,575 | 24,418 | 23,624 | 23,808 | 23,796 | 22,586 | |||||||||||||
Goodwill | 27,927 | 27,882 | 27,828 | 27,812 | 26,507 | 27,108 | 26,365 | 26,289 | 25,955 | 26,456 | 26,418 | 24,565 | |||||||||||||
Other intangible assets - net | 11,564 | 11,673 | 11,931 | 12,082 | 11,561 | 12,113 | 11,851 | 12,001 | 12,092 | 12,510 | 12,638 | 11,810 | |||||||||||||
Other long-term assets | 5,512 | 5,445 | 5,368 | 5,629 | 5,329 | 4,741 | 4,581 | 4,537 | 4,419 | 4,533 | 4,552 | 4,159 | |||||||||||||
Total Assets | 88,349 | 86,315 | 85,993 | 86,078 | 82,704 | 82,546 | 80,215 | 80,347 | 77,827 | 78,718 | 80,308 | 74,323 | |||||||||||||
Liabilities and Equity | |||||||||||||||||||||||||
Accounts payable | 2,837 | 2,659 | 2,646 | 2,593 | 2,446 | 2,845 | 2,859 | 2,885 | 2,750 | 2,977 | 2,941 | 3,067 | |||||||||||||
Short-term debt | 4,861 | 4,822 | 4,962 | 4,879 | 4,465 | 3,509 | 3,326 | 4,046 | 3,849 | 3,018 | 5,337 | 3,179 | |||||||||||||
Current portion of long-term debt | 2,474 | 1,636 | 2,371 | 1,340 | 1,824 | 1,278 | 1,261 | 1,046 | 922 | 944 | 1,696 | 1,551 | |||||||||||||
Contract liabilities | 1,128 | 1,168 | 1,279 | 1,261 | 1,196 | 1,727 | 1,767 | 1,827 | 1,985 | 3,246 | 3,070 | 2,902 | |||||||||||||
Liabilities of assets held for sale | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Other current liabilities | 4,827 | 5,106 | 4,934 | 4,641 | 4,554 | 4,690 | 4,291 | 4,585 | 4,656 | 4,367 | 4,741 | 4,362 | |||||||||||||
Total Current Liabilities | 16,127 | 15,391 | 16,192 | 14,714 | 14,485 | 14,049 | 13,504 | 14,389 | 14,162 | 14,552 | 17,785 | 15,061 | |||||||||||||
Long-term debt | 20,678 | 19,859 | 18,592 | 19,701 | 17,608 | 17,475 | 16,931 | 15,227 | 13,232 | 13,528 | 11,744 | 10,608 | |||||||||||||
Other long-term liabilities | 10,914 | 10,973 | 11,123 | 11,677 | 11,148 | 10,419 | 10,229 | 10,502 | 10,195 | 9,390 | 9,443 | 9,715 | |||||||||||||
Total Liabilities | 47,719 | 46,223 | 45,907 | 46,092 | 43,241 | 41,943 | 40,664 | 40,118 | 37,589 | 37,470 | 38,972 | 35,384 | |||||||||||||
Redeemable noncontrolling interests | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | |||||||||||||
Linde plc Shareholders’ Equity (Note 10): | |||||||||||||||||||||||||
Accrued liabilities | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Related party debt (Note 7) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Ordinary shares, €0.001 par value, authorized 1,750,000,000 shares, 2026 and 2025 issued: 490,766,972 ordinary shares | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | |||||||||||||
Additional paid-in capital | 39,130 | 39,177 | 39,405 | 39,411 | 39,408 | 39,573 | 39,560 | 39,570 | 39,803 | 39,797 | 39,859 | 40,011 | |||||||||||||
Receivable from shareholders | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Retained earnings | 18,804 | 17,639 | 15,796 | 14,595 | 13,545 | 11,585 | 10,721 | 9,708 | 7,940 | 7,024 | 6,092 | 19,845 | |||||||||||||
Accumulated other comprehensive income (loss) | (5,926) | (6,147) | (6,409) | (6,250) | (6,768) | (6,059) | (6,794) | (6,528) | (6,676) | (5,899) | (5,810) | (8,094) | |||||||||||||
Less: Treasury shares, at cost (2026 – 29,786,809 shares and 2025 – 27,086,030 shares) | 12,928 | 12,104 | 10,177 | 9,242 | 8,154 | 5,927 | 5,309 | 3,922 | 2,169 | 1,011 | 171 | 14,135 | |||||||||||||
Total Linde plc Shareholders’ Equity | 39,081 | 38,566 | 38,616 | 38,515 | 38,032 | 39,173 | 38,179 | 38,829 | 38,898 | 39,911 | 39,970 | 37,628 | |||||||||||||
Noncontrolling interests | 1,536 | 1,513 | 1,457 | 1,458 | 1,418 | 1,417 | 1,359 | 1,387 | 1,327 | 1,324 | 1,353 | 1,298 | |||||||||||||
Total Equity | 40,617 | 40,079 | 40,073 | 39,973 | 39,450 | 40,590 | 39,538 | 40,216 | 40,225 | 41,235 | 41,323 | 38,926 | |||||||||||||
Total Liabilities and Equity | $ 88,349 | $ 86,315 | $ 85,993 | $ 86,078 | $ 82,704 | $ 82,546 | $ 80,215 | $ 80,347 | $ 77,827 | $ 78,718 | $ 80,308 | $ 74,323 | |||||||||||||
Common stock, par value (euro per share) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Statement [Line Items] | |||||||||||||||||||||||||
Common stock, authorized (in shares) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Common stock, issued (in shares) | - | - | - | - | - | - | - | - | - | - | - | - |