Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities:
Net income	$ 621.1	$ 544.5
Adjustments to arrive at cash provided by operating activities:
Depreciation	100.7	107.2
Amortization of intangible assets	23.3	22.0
Share-based compensation expense	29.4	30.4
Retirement benefit expense	129.2	117.5
Pension contributions	(40.8)	(31.8)
Net (gain) loss on disposition of property	(0.1)	0.8
Excess income tax benefit from share-based compensation	0.0	(2.4)
Changes in assets and liabilities, excluding effects of acquisitions and foreign currency adjustments:
Receivables	(39.7)	17.0
Inventories	(53.0)	(23.8)
Accounts payable	66.7	28.9
Advance payments from customers and deferred revenue	30.1	13.8
Compensation and benefits	105.7	(81.1)
Income taxes	(22.4)	(54.8)
Other assets and liabilities	(23.1)	(12.9)
Cash provided by operating activities	927.1	675.3
Investing activities:
Capital expenditures	(97.5)	(79.4)
Acquisition of businesses, net of cash acquired	(1.1)	(21.2)
Purchases of investments	916.8	801.5
Proceeds from maturities of investments	614.9	596.2
Proceeds from sale of investments	36.0	0.0
Proceeds from sale of property	0.8	0.4
Cash used for investing activities	(363.7)	(305.5)
Financing activities:
Net (repayment) issuance of short-term debt	(100.2)	354.0
Cash dividends	(293.2)	(284.7)
Purchases of treasury stock	(304.6)	(374.1)
Proceeds from the exercise of stock options	160.3	28.0
Excess income tax benefit from share-based compensation	0.0	2.4
Cash used for financing activities	(537.7)	(274.4)
Effect of exchange rate changes on cash	(2.7)	(13.4)
Increase in cash and cash equivalents	23.0	82.0
Cash and cash equivalents at beginning of period	1,526.4	1,427.3
Cash and cash equivalents at end of period	$ 1,549.4	$ 1,509.3