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Investments In and Advances To Affiliates (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 25, 2017 | Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Investments in and Advances to Affiliates [Line Items] |  |  |  |  |
Operating margin |  | $ 711 | $ 688 | $ 1,974 | $ 1,771
Net income (loss) |  | 261 | 229 | 509 | (84)
Income (Loss) from Equity Method Investments |  | $ 24 | $ 11 | 33 | 25
Minority Owned Affiliates [Member] |  |  |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |  |  |
Revenue |  |  |  | 532 | 439
Operating margin |  |  |  | 91 | 108
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest |  |  |  | 44 | 46
Parent [Member] |  |  |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |  |  |
Net income (loss) |  |  |  | $ 181 | $ (181)
sPower [Member] |  |  |  |  |
Investments in and Advances to Affiliates [Line Items] |  |  |  |  |
Equity Method Investment, Ownership Percentage | 48.00% |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | $ 461 |  |  |  |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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