Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating activities:
Net income	$ 353.5	$ 420.2
Adjustments to arrive at cash provided by operating activities:
Depreciation	71.7	66.1
Amortization of intangible assets	14.7	13.6
Share-based compensation expense	20.6	21.2
Retirement benefit expense	78.2	71.3
Pension contributions	(21.2)	(21.3)
Net loss on disposition of property	0.5	0.2
Excess income tax benefit from share-based compensation	(1.2)	(6.6)
Changes in assets and liabilities, excluding effects of acquisitions and foreign currency adjustments:
Receivables	13.5	81.2
Inventories	(33.8)	(34.6)
Accounts payable	3.3	26.7
Advance payments from customers and deferred revenue	26.5	24.6
Compensation and benefits	(73.7)	(70.3)
Income taxes	(58.0)	(14.0)
Other assets and liabilities	4.7	(24.9)
Cash provided by operating activities	399.3	553.4
Investing activities:
Capital expenditures	(52.6)	(58.0)
Acquisition of businesses, net of cash acquired	(21.1)	(21.2)
Purchases of short-term investments	(590.6)	(338.0)
Proceeds from maturities of short-term investments	397.6	323.8
Proceeds from sale of property	0.2	0.2
Cash used for investing activities	(266.5)	(93.2)
Financing activities:
Net issuance (repayment) of short-term debt	277.6	(325.0)
Issuance of long-term debt, net of discount and issuance costs	0.0	594.3
Cash dividends	(190.4)	(175.9)
Purchases of treasury stock	(257.4)	(293.0)
Proceeds from the exercise of stock options	12.8	22.7
Excess income tax benefit from share-based compensation	1.2	6.6
Other financing activities	0.0	(1.6)
Cash used for financing activities	(156.2)	(171.9)
Effect of exchange rate changes on cash	(7.6)	(76.7)
(Decrease) increase in cash and cash equivalents	(31.0)	211.6
Cash and cash equivalents at beginning of period	1,427.3	1,191.3
Cash and cash equivalents at end of period	$ 1,396.3	$ 1,402.9