Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities
Net income	$ 446	$ 773
Adjustments to net income to derive net cash provided by operating activities:
Depreciation and amortization	1,412	802
Share-based compensation	261	138
Deferred income taxes	(472)	(339)
Change in operating assets and liabilities	430	(665)
Pension obligation	(228)	56
Excess tax benefits from payments under share-based compensation plans	63	60
Lease Contract Modification Related Charge	0	741
Gain on Sale of Investments	(308)	0
Other, net	(45)	(142)
Net Cash Provided by Operating Activities	1,559	1,424
Investing Activities
Capital expenditures	(588)	(467)
Proceeds from sale of investments, net	13	17
Acquisitions of businesses, net of cash acquired	(15,111)	(158)
Proceeds from divestitures, net	534	165
Other, net	(145)	(94)
Net Cash Used for Investing Activities	(15,298)	(536)
Financing Activities
Change in credit facility borrowings	200	50
Proceeds from long-term debt	4,335	11,462
Payments of debt	(2,723)	(3,980)
Proceeds from Issuance or Sale of Equity	0	4,827
Repurchase of common stock	0	(220)
Dividends paid	(687)	(478)
Other, net	(176)	(229)
Net Cash Provided by Financing Activities	949	11,433
Effect of exchange rate changes on cash and equivalents	(5)	(11)
Net (decrease) increase in cash and equivalents	(12,795)	12,310
Opening Cash and Equivalents	14,179	1,541
Closing Cash and Equivalents	1,384	13,852
Noncash Investing and Financing Items [Abstract]
Fair value of the Company’s issued shares	8,004	0
Non-cash consideration-fair value of equity awards issued	$ 613	$ 0