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Shareowners' Equity and Noncontrolling Interest (Summary of Changes in Shareowners' Equity and Noncontrolling Interest) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Shareowners' Equity, beginning of period | $ 27,579 | $ 27,358
Noncontrolling interest, beginning of period | 1,590 | 1,486
Total Equity, beginning of period | 29,169 | 28,844
Net income, Shareowners' Equity | 1,386 | 1,183
Net Income, Noncontrolling Interest | 82 | 81
Net income, Total Equity | 1,468 | 1,264
Total other comprehensive (loss) income, Shareowners' Equity | 1 | 275
Total other comprehensive income (loss), Noncontrolling Interest | 25 | 13
Total other comprehensive (loss) income | 26 | 288
Total comprehensive income for the period, Shareowners' Equity | 1,387 | 1,458
Total comprehensive income for the period, Noncontrolling Interest | 107 | 94
Total comprehensive income for the period, Total Equity | 1,494 | 1,552
Common Stock issued under employee plans | 79 | 59
Common Stock repurchased | 933 | 0
Dividends on Common Stock | 505 | 509
Dividends on ESOP Common Stock | 18 | 18
Dividends attributable to noncontrolling interest | 5 | 51
Purchase of subsidiary shares from noncontrolling interest | 1 | 1
Acquisition of noncontrolling interest | 0 | 34
Other | 8 | 7
Shareowners' Equity, end of period | 27,594 | 28,353
Noncontrolling interest, end of period | 1,678 | 1,550
Total Equity, end of period | 29,272 | 29,903
Shareowners' Equity [Member] |  |
Purchase of subsidiary shares from noncontrolling interest | 0 | 0
Other | (5) | (5)
Noncontrolling Interest [Member] |  |
Purchase of subsidiary shares from noncontrolling interest | 1 | 1
Other | $ 13 | $ 12

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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(22)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(24)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.31) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + 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(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 3: 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(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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