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[Line Items] for Assets and Liabilities Held for Sale [Table]

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Disposal Group, Including Discontinued Operation, Current portion of long-term debt

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Disposal Group, Including Discontinued Operation, Investments in Partially-Owed Affiliates

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Disposal Group, Including Discontinued Operation, Long-Term Debt

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Disposal Group, Including Discontinued Operation, Pension and Postretirement Benefits

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Disposal Group Including Discontinued Operation, Short-Term Debt

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Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.

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Amount classified as goodwill attributable to disposal group held for sale or disposed of.

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Amount classified as inventory attributable to disposal group, expected to be disposed of within one year or the normal operating cycle, if longer.

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Discontinued Operations Assets and Liabilities Held for Sale (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Sep. 30, 2019	Sep. 30, 2018
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale		$ 98	$ 3,015
Noncurrent assets held for sale		60	5,188
Noncurrent liabilities held for sale		0	207
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] \| Power Solutions
Assets and Liabilities Held for Sale [Line Items]
Cash			15
Accounts receivable - net			1,443
Inventories			1,405
Other current assets			152
Assets held for sale			3,015
Property, plant and equipment - net			2,871
Goodwill			1,092
Other intangible assets - net			161
Other noncurrent assets			611
Noncurrent assets held for sale			5,188
Accounts payable			1,237
Accrued compensation and benefits			125
Other current liabilities			395
Liabilities held for sale			1,791
Other noncurrent iabilities			75
Noncurrent liabilities held for sale			207
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] \| Power Solutions
Assets and Liabilities Held for Sale [Line Items]
Investments in partially-owned affiliates			453
Short-term debt			9
Current portion of long-term debt			25
Long-term debt			31
Pension and postretirement benefits			$ 101
Global Products
Assets and Liabilities Held for Sale [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 235	$ 235