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Note 13, NonConsolidated Partially-Owned Affiliates (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Sep. 30, 2016
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  |  | $ 12,890 | $ 12,158 |
Equity Method Investment, Summarized Financial Information, Current Assets | $ 7,439 |  | 7,439 |  | $ 6,135
Equity Method Investment, Summarized Financial Information, Noncurrent Assets | 3,025 |  | 3,025 |  | 2,729
Equity Method Investment, Summarized Financial Information, Assets | 10,464 |  | 10,464 |  | 8,864
Equity Method Investment, Summarized Financial Information, Current Liabilities | 7,013 |  | 7,013 |  | 5,855
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities | 364 |  | 364 |  | 195
Equity Method Investment, Summarized Financial Information, Noncontrolling Interest | 130 |  | 130 |  | 140
Equity Method Investment Summarized Financial Information, Equity | 2,957 |  | 2,957 |  | 2,674
Equity Method Investment, Summarized Financial Information, Liabilities and Equity | 10,464 |  | 10,464 |  | 8,864
Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) |  |  | 1,588 | 1,356 |
Equity Method Investments Summarized Financial Information Operating Income (Loss) |  |  | 904 | 835 |
Equity Method Investments Summarized Financial Information Net Income (Loss) Including Noncontrolling Interests |  |  | 796 | 744 |
Equity Method Investments Summarized Financial Information Net Income (Loss) Attributable to Noncontrolling Interests |  |  | 48 | 52 |
Equity Method Investment, Summarized Financial Information, Net Income (Loss) |  |  | 748 | 692 |
Income (Loss) from Equity Method Investments before Basis Adjustments |  |  | 304 | 278 |
Equity Method Investments Basis Adjustments |  |  | (18) | (18) |
Income (Loss) from Equity Method Investments | 94 | $ 89 | 286 | 260 |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 1,967 |  | 1,967 |  | 1,748
YFJC [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  |  | 3,389 | 3,156 |
Equity Method Investment, Summarized Financial Information, Current Assets | 2,973 |  | 2,973 |  | 2,306
Equity Method Investment, Summarized Financial Information, Noncurrent Assets | 655 |  | 655 |  | 609
Equity Method Investment, Summarized Financial Information, Assets | 3,628 |  | 3,628 |  | 2,915
Equity Method Investment, Summarized Financial Information, Current Liabilities | 2,704 |  | 2,704 |  | 2,004
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities | 48 |  | 48 |  | 44
Equity Method Investment, Summarized Financial Information, Noncontrolling Interest | 99 |  | 99 |  | 113
Equity Method Investment Summarized Financial Information, Equity | 777 |  | 777 |  | 754
Equity Method Investment, Summarized Financial Information, Liabilities and Equity | 3,628 |  | 3,628 |  | 2,915
Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) |  |  | 437 | 438 |
Equity Method Investments Summarized Financial Information Operating Income (Loss) |  |  | 335 | 334 |
Equity Method Investments Summarized Financial Information Net Income (Loss) Including Noncontrolling Interests |  |  | 271 | 274 |
Equity Method Investments Summarized Financial Information Net Income (Loss) Attributable to Noncontrolling Interests |  |  | 35 | 35 |
Equity Method Investment, Summarized Financial Information, Net Income (Loss) |  |  | 236 | 239 |
Income (Loss) from Equity Method Investments before Basis Adjustments |  |  | 118 | 121 |
Equity Method Investments Basis Adjustments |  |  | (2) | (3) |
Income (Loss) from Equity Method Investments |  |  | 116 | 118 |
All Other [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  |  | 9,501 | 9,002 |
Equity Method Investment, Summarized Financial Information, Current Assets | 4,466 |  | 4,466 |  | 3,829
Equity Method Investment, Summarized Financial Information, Noncurrent Assets | 2,370 |  | 2,370 |  | 2,120
Equity Method Investment, Summarized Financial Information, Assets | 6,836 |  | 6,836 |  | 5,949
Equity Method Investment, Summarized Financial Information, Current Liabilities | 4,309 |  | 4,309 |  | 3,851
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities | 316 |  | 316 |  | 151
Equity Method Investment, Summarized Financial Information, Noncontrolling Interest | 31 |  | 31 |  | 27
Equity Method Investment Summarized Financial Information, Equity | 2,180 |  | 2,180 |  | 1,920
Equity Method Investment, Summarized Financial Information, Liabilities and Equity | $ 6,836 |  | 6,836 |  | $ 5,949
Equity Method Investment, Summarized Financial Information, Gross Profit (Loss) |  |  | 1,151 | 918 |
Equity Method Investments Summarized Financial Information Operating Income (Loss) |  |  | 569 | 501 |
Equity Method Investments Summarized Financial Information Net Income (Loss) Including Noncontrolling Interests |  |  | 525 | 470 |
Equity Method Investments Summarized Financial Information Net Income (Loss) Attributable to Noncontrolling Interests |  |  | 13 | 17 |
Equity Method Investment, Summarized Financial Information, Net Income (Loss) |  |  | 512 | 453 |
Income (Loss) from Equity Method Investments before Basis Adjustments |  |  | 186 | 157 |
Equity Method Investments Basis Adjustments |  |  | (16) | (15) |
Income (Loss) from Equity Method Investments |  |  | $ 170 | $ 142 |

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- Definition Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity. + 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 (c) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.g) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 + Details
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- Definition The amount of gross profit (loss) reported by an equity method investment of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33912-111571 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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- Definition The amount of liabilities and equity reported by an equity method investment of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33912-111571 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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