Income Taxes	6 Months Ended
Income Taxes	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES India Finance Act 2020 On 27 March 2020, the Indian government passed Finance Act 2020 (the "India Finance Act"), which amended rules regarding the taxation of dividends declared and distributed by Indian companies. Under the India Finance Act, future dividends declared or distributed by an Indian company are no longer subject to dividend distribution tax. Instead, any non-resident recipient is subject to a withholding tax. Our consolidated income statements for the three and six months ended 31 March 2020 included a net benefit of $13.5 as a result of the India Finance Act. The net benefit included $33.8 for our share of accumulated dividend distribution taxes released with respect to INOX Air Products Private Limited ("INOX"), an equity affiliate investment in our Industrial Gases – Asia segment. This benefit was reflected within "Equity affiliates' income" and was not recorded in segment results. In addition, our income tax provision reflected an expense of $20.3 for estimated withholding taxes that we may incur on future dividends related to INOX. Effective Tax Rate Our effective tax rate was 20.4% and 19.8% for the three and six months ended 31 March 2021, respectively. The effective tax rate was 22.7% and 21.3% for the three and six months ended 31 March 2020, respectively. Cash Paid for Taxes (Net of Cash Refunds) Income tax payments, net of refunds, were $223.8 and $253.5 for the six months ended 31 March 2021 and 2020, respectively. Fiscal year 2021 reflects an income tax refund of $6.7 that is related to cash provided by discontinued operations.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.