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SHAREOWNERS' EQUITY - Additional Information (Detail) $ / shares in Units, $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2018 USD ($) option Vote Classes_of_Common_Stock $ / shares shares | Jun. 30, 2017 USD ($) shares | May 01, 2016 USD ($)
Stockholders Equity Note [Line Items] |  |  |
Classes of Common Stock, Number | Classes_of_Common_Stock | 2 |  |
Preferred stock, shares authorized | shares | 200,000,000 |  |
Preferred stock, par value | $ / shares | $ 0.01 |  |
Preferred stock, issued | shares | 0 |  |
Common stock authorized for purchase, amount | $ |  |  | $ 8,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ | $ 3,828 |  |
Noncontrolling Interest, Period Increase (Decrease) | $ | $ 2 | $ 6 |
Class A common stock |  |  |
Stockholders Equity Note [Line Items] |  |  |
Votes per common share | Vote | 10 |  |
Common stock, par value | $ / shares | $ 0.01 |  |
Common stock, shares authorized | shares | 4,600,000,000 |  |
Total of Class A and Class B common stock, repurchased, value | $ | $ 0 | $ 0 |
Common stock purchases | shares | 2,000,000 | 2,000,000 |
Class B common stock |  |  |
Stockholders Equity Note [Line Items] |  |  |
Votes per common share | Vote | 1 |  |
Common stock, par value | $ / shares | $ 0.01 |  |
Common stock, shares authorized | shares | 5,600,000,000 |  |
Total of Class A and Class B common stock, repurchased, value | $ | $ 0 | $ 0 |
Common stock purchases | shares | 2,000,000 | 6,000,000 |
Class A and B Common Stock |  |  |
Stockholders Equity Note [Line Items] |  |  |
Total of Class A and Class B common stock, repurchased, value | $ | $ 511 | $ 901 |
Common stock purchases | shares | 4,400,000 | 8,400,000 |
Options Held [Member] |  |  |
Stockholders Equity Note [Line Items] |  |  |
Option premiums received | $ | $ (19) | $ 52 |
Number of options open | option | 700,000.0 |  |
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share | $ / shares | $ 99.98 |  |

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- Definition Face amount or stated value per share of common stock. + 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(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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