EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2015 |
[5] | Mar. 31, 2015 |
[5] | Dec. 31, 2014 |
[5] | Sep. 30, 2014 |
[5] | Jun. 30, 2014 |
[5] | Mar. 31, 2014 |
[5] | Dec. 31, 2013 |
[5] | Sep. 30, 2013 |
[5] | Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2013 |
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| Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 7,144 | $ 11,785 | $ 11,402 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Attributable to Noncontrolling Interest | (108) | (142) | (90) | ||||||||||||||||||||||||||||||
| Net Income (Loss) Attributable to Parent, Diluted | 7,036 | 11,643 | 11,312 | ||||||||||||||||||||||||||||||
| Dividends, Preferred Stock | 259 | 253 | 244 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Available to Common Stockholders, Basic | $ 6,777 | $ 11,390 | $ 11,068 | ||||||||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Basic | 2,711.7 | 2,719.8 | 2,742.9 | ||||||||||||||||||||||||||||||
| Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock | [1] | 108.6 | 112.3 | 116.8 | |||||||||||||||||||||||||||||
| Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements | [2] | 63.3 | 72.6 | 70.9 | |||||||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Diluted | 2,883.6 | 2,904.7 | 2,930.6 | ||||||||||||||||||||||||||||||
| Earnings Per Share, Basic | [3],[4] | $ 2.50 | $ 4.19 | $ 4.04 | |||||||||||||||||||||||||||||
| Earnings Per Share, Diluted | $ 0.18 | $ 0.75 | $ 0.82 | $ 0.69 | $ 0.89 | $ 0.90 | $ 1.18 | $ 1.04 | $ 2.44 | [3],[4],[5] | $ 4.01 | [3],[4],[5] | $ 3.86 | [3],[4] | |||||||||||||||||||
| Continuing Operations [Member] | |||||||||||||||||||||||||||||||||
| Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 8,930 | $ 11,318 | $ 10,953 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Attributable to Noncontrolling Interest | (100) | (121) | (93) | ||||||||||||||||||||||||||||||
| Net Income (Loss) Attributable to Parent, Diluted | 8,830 | 11,197 | 10,860 | ||||||||||||||||||||||||||||||
| Dividends, Preferred Stock | 259 | 253 | 244 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Available to Common Stockholders, Basic | $ 8,571 | $ 10,944 | $ 10,616 | ||||||||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Basic | 2,711.7 | 2,719.8 | 2,742.9 | ||||||||||||||||||||||||||||||
| Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock | [1] | 108.6 | 112.3 | 116.8 | |||||||||||||||||||||||||||||
| Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements | [2] | 63.3 | 72.6 | 70.9 | |||||||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Diluted | 2,883.6 | 2,904.7 | 2,930.6 | ||||||||||||||||||||||||||||||
| Earnings Per Share, Basic | [4] | $ 3.16 | $ 4.03 | $ 3.87 | |||||||||||||||||||||||||||||
| Earnings Per Share, Diluted | [4] | $ 3.06 | $ 3.86 | $ 3.71 | |||||||||||||||||||||||||||||
| Discontinued Operations [Member] | |||||||||||||||||||||||||||||||||
| Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | $ (1,786) | $ 467 | $ 449 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Attributable to Noncontrolling Interest | (8) | (21) | 3 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Attributable to Parent, Diluted | (1,794) | 446 | 452 | ||||||||||||||||||||||||||||||
| Dividends, Preferred Stock | 0 | 0 | 0 | ||||||||||||||||||||||||||||||
| Net Income (Loss) Available to Common Stockholders, Basic | $ (1,794) | $ 446 | $ 452 | ||||||||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Basic | 2,711.7 | 2,719.8 | 2,742.9 | ||||||||||||||||||||||||||||||
| Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock | [1] | 108.6 | 112.3 | 116.8 | |||||||||||||||||||||||||||||
| Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements | [2] | 63.3 | 72.6 | 70.9 | |||||||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Diluted | 2,883.6 | 2,904.7 | 2,930.6 | ||||||||||||||||||||||||||||||
| Earnings Per Share, Basic | [4] | $ (0.66) | $ 0.16 | $ 0.17 | |||||||||||||||||||||||||||||
| Earnings Per Share, Diluted | [4] | $ (0.62) | $ 0.15 | $ 0.15 | |||||||||||||||||||||||||||||
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