Discontinued Operations Narrative (Details) - Discontinued Operations, Disposed of by Sale [Member] $ in Millions	3 Months Ended
	Dec. 31, 2016 USD ($)
Combined, Network Power and Power Generation, motors and Drives Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net earnings (loss) from operations of discontinued operations, net of tax	$ 14
Income tax expense for repatriation of cash	(144)
Benefit from ceasing depreciation on assets from discontinued operations	27
Cash payments for income taxes and fees related to discontinued businesses	139
Network Power Systems Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Agreed-upon purchase price of business	4,000
Gain on sale of business, net of tax	86
Gain on sale of business, pretax	465
Power Generation, Motors and Drives Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Agreed-upon purchase price of business	1,200
Loss on sale of business, pretax	$ 38