Supplemental Information (Tables)

12 Months Ended

Sep. 30, 2020

Disclosure Text Block Supplement [Abstract]

Schedule of Other Receivables and Current Assets

Other Receivables and Current Assets
30 September	2020	2019
Contract assets	$55.9	$64.3
Contract fulfillment costs	109.9	64.5
Derivative instruments	97.5	142.5
Current lease receivables	86.7	90.9
Other	132.9	115.5
Other receivables and current assets	$482.9	$477.7

Schedule of Other Noncurrent Assets

Other Noncurrent Assets
30 September	2020	2019
Operating lease right-of-use assets	$376.8	$—
Deferred tax assets	115.1	115.2
Derivative instruments	45.8	81.7
Noncurrent customer receivable	—	118.0
Prepaid tax	19.3	17.0
Pension benefits	26.5	28.7
Long-term deposits on plant and equipment	100.0	—
Other	259.6	243.5
Other noncurrent assets	$943.1	$604.1

Schedule of Payables and Accrued Liabilities

Payables and Accrued Liabilities
30 September	2020	2019
Trade creditors	$546.2	$528.2
Contract liabilities	313.8	247.4
Dividends payable	296.2	255.7
Accrued payroll and employee benefits	196.8	186.1
Obligation for future contribution to an equity affiliate	94.4	94.4
Current lease obligations	70.7	—
Derivative instruments	50.9	91.2
Pension and postretirement benefits	17.9	26.0
Other	246.3	206.7
Payables and accrued liabilities	$1,833.2	$1,635.7

Schedule of Other Noncurrent Liabilities

Other Noncurrent Liabilities
30 September	2020	2019
Pension benefits	$614.2	$651.2
Postretirement benefits	31.4	36.0
Operating lease liabilities(A)	335.8	—
Asset retirement obligations	236.2	201.9
Long-term accrued income taxes related to U.S. tax reform	190.9	215.4
Contingencies related to uncertain tax positions	138.6	123.3
Environmental liabilities	73.6	59.1
Contract liabilities	57.9	49.2
Derivative instruments	34.7	21.2
Noncurrent customer liability	—	118.0
Obligations associated with Energy-from-Waste(A)	—	57.8
Other	202.7	179.3
Other noncurrent liabilities	$1,916.0	$1,712.4