Discontinued Operations (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended | |
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2017 | Mar. 31, 2016 | Sep. 30, 2017 | Sep. 30, 2016 |
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] | | | | | | |
Earnings (Loss), net of tax | $ (84) | $ 2 | $ (139) | $ 48 | | |
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract] | | | | | | |
Cash from operating activities | | | | 190 | | |
Cash from investing activities | | | 5,051 | (38) | | |
Gain on sale of business, net of tax | | | 14 | | | |
Combined, Network Power and Power Generation, motors and Drives Business [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | | | | | | |
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] | | | | | | |
Net sales | 97 | 1,356 | 1,037 | 2,742 | | |
Cost of sales | 75 | 902 | 701 | 1,813 | | |
SG&A | 21 | 341 | 263 | 686 | | |
Other (income) deductions, net | 4 | 55 | (417) | 115 | | |
Earnings (Loss) before income taxes | (3) | 58 | 490 | 128 | | |
Income taxes | 81 | 56 | 629 | 80 | | |
Earnings (Loss), net of tax | (84) | 2 | (139) | 48 | | |
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] | | | | | | |
Accounts receivables | | | | | | $ 1,492 |
Inventories | | | | | | 578 |
Other current assets | | | | | | 130 |
Property, plant & equipment, net | | | | | | 611 |
Goodwill | | | | | | 2,691 |
Other noncurrent assets | | | | | | 528 |
Total assets held-for-sale | | | | | | 6,030 |
Accounts payable | | | | | | 840 |
Other current liabilities | | | | | | 761 |
Deferred taxes and other noncurrent liabilities | | | | | | 326 |
Total liabilities held-for-sale | | | | | | 1,927 |
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract] | | | | | | |
Cash from operating activities | | | (601) | 190 | | |
Cash from investing activities | | | 5,051 | (38) | | |
Benefit from ceasing depreciation on assets from discontinued operations | | | 30 | | | |
Net earnings (loss) from operations of discontinued operations, net of tax | (8) | 58 | 6 | 126 | | |
Income tax expense for repatriation of cash | | 28 | | 28 | | |
Separation costs for professional fees and other costs, net of tax | | 28 | | 50 | | |
Income tax expense for repatriation of sales proceeds and cash from discontinued operations | | | 103 | | | |
Cash payments for income taxes, professional fees and other costs paid related to discontinued businesses | | | | 57 | | |
Network Power Systems Business [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | |
Proceeds from Divestiture of Business | | | 4,000 | | | |
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] | | | | | | |
Net sales | 0 | 1,015 | 630 | 2,063 | | |
Cost of sales | 0 | 639 | 394 | 1,289 | | |
SG&A | 0 | 270 | 180 | 549 | | |
Other (income) deductions, net | 0 | 44 | (461) | 92 | | |
Earnings (Loss) before income taxes | 0 | 62 | 517 | 133 | | |
Income taxes | (14) | 56 | 540 | 80 | | |
Earnings (Loss), net of tax | 14 | 6 | (23) | 53 | | |
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] | | | | | | |
Accounts receivables | | | | | | 1,202 |
Inventories | | | | | | 381 |
Other current assets | | | | | | 108 |
Property, plant & equipment, net | | | | | | 352 |
Goodwill | | | | | | 2,111 |
Other noncurrent assets | | | | | | 473 |
Total assets held-for-sale | | | | | | 4,627 |
Accounts payable | | | | | | 664 |
Other current liabilities | | | | | | 620 |
Deferred taxes and other noncurrent liabilities | | | | | | 227 |
Total liabilities held-for-sale | | | | | | 1,511 |
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract] | | | | | | |
Cash from operating activities | | | (572) | 163 | | |
Cash from investing activities | | | 5,063 | (15) | | |
Gain on sale of business, net of tax | | | 100 | | | |
Gain on sale of business, pretax | | | 465 | | | |
Power Generation, Motors and Drives Business [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | | | | | | |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | | | | | | |
Agreed-Upon Purchase Price of Business | | | 1,200 | | | |
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] | | | | | | |
Net sales | 97 | 341 | 407 | 679 | | |
Cost of sales | 75 | 263 | 307 | 524 | | |
SG&A | 21 | 71 | 83 | 137 | | |
Other (income) deductions, net | 4 | 11 | 44 | 23 | | |
Earnings (Loss) before income taxes | (3) | (4) | (27) | (5) | | |
Income taxes | 95 | 0 | 89 | 0 | | |
Earnings (Loss), net of tax | (98) | $ (4) | (116) | (5) | | |
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] | | | | | | |
Accounts receivables | | | | | | 290 |
Inventories | | | | | | 197 |
Other current assets | | | | | | 22 |
Property, plant & equipment, net | | | | | | 259 |
Goodwill | | | | | | 580 |
Other noncurrent assets | | | | | | 55 |
Total assets held-for-sale | | | | | | 1,403 |
Accounts payable | | | | | | 176 |
Other current liabilities | | | | | | 141 |
Deferred taxes and other noncurrent liabilities | | | | | | 99 |
Total liabilities held-for-sale | | | | | | $ 416 |
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract] | | | | | | |
Cash from operating activities | | | (29) | 27 | | |
Cash from investing activities | | | (12) | $ (23) | | |
Income tax expense recognized on completion of sale of business | 134 | | | | | |
Income tax benefit for planned repatriation of sales proceeds and cash from discontinued operations | 41 | | | | | |
Benefit from ceasing depreciation on assets from discontinued operations | $ 3 | | | | | |
After tax loss on completion of sale of business | | | 172 | | | |
Loss on sale of business, pretax | | | $ 38 | | | |
Scenario, Forecast [Member] | Combined, Network Power and Power Generation, motors and Drives Business [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | | | | | | |
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract] | | | | | | |
Cash from operating activities | | | | | $ 750 | |