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SHAREOWNERS' EQUITY - Roll-forward of Common Stock, Additional Paid-in Capital, and Retained Earnings Accounts (Detail) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Common stock purchases, Shares | (2.6) |  |  |  |  |  |  |  | (25.2) | (26.8) | (26.4)
Balance at beginning of year |  |  |  | $ 2,470 |  |  |  |  | $ 2,470 |  |
Net income attributable to controlling interests | $ (239) | $ 1,270 | $ 1,269 | $ 1,131 | $ 1,331 | $ 1,257 | $ 1,230 | $ 1,026 | 3,431 | $ 4,844 | $ 3,032
Common stock purchases | (300) |  |  |  |  |  |  |  | (2,680) | (2,711) | (2,662)
Balance at end of period | $ 405 |  |  |  | $ 2,470 |  |  |  | 405 | 2,470 |
Payments for Repurchase of Common Stock |  |  |  |  |  |  |  |  | $ 2,678 | $ 2,702 | $ 2,695
Common Stock | Class A Common Stock: |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year, Shares |  |  |  | 194.0 |  |  |  | 201.0 | 194.0 | 201.0 | 212.0
Common stock purchases, Shares |  |  |  |  |  |  |  |  | (4.0) | (4.0) | (5.0)
Stock award plans, Shares |  |  |  |  |  |  |  |  | 5.0 | 5.0 | 5.0
Common stock issuances, Shares |  |  |  |  |  |  |  |  | 2.0 | 3.0 | 3.0
Conversions of class A to class B common stock, Shares |  |  |  |  |  |  |  |  | (17.0) | (11.0) | (14.0)
Balance at end of year, Shares | 180.0 |  |  |  | 194.0 |  |  |  | 180.0 | 194.0 | 201.0
Balance at beginning of year |  |  |  | $ 2 |  |  |  | $ 2 | $ 2 | $ 2 | $ 2
Common stock purchases |  |  |  |  |  |  |  |  | 0 | 0 | 0
Stock award plans |  |  |  |  |  |  |  |  | 0 | 0 | 0
Common stock issuances |  |  |  |  |  |  |  |  | 0 | 0 | 0
Conversions of class A to class B common stock |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance at end of period | $ 2 |  |  |  | $ 2 |  |  |  | $ 2 | $ 2 | $ 2
Common Stock | Class B Common Stock: |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year, Shares |  |  |  | 693.0 |  |  |  | 705.0 | 693.0 | 705.0 | 712.0
Common stock purchases, Shares |  |  |  |  |  |  |  |  | (21.0) | (23.0) | (21.0)
Conversions of class A to class B common stock, Shares |  |  |  |  |  |  |  |  | 17.0 | 11.0 | 14.0
Balance at end of year, Shares | 689.0 |  |  |  | 693.0 |  |  |  | 689.0 | 693.0 | 705.0
Balance at beginning of year |  |  |  | $ 7 |  |  |  | $ 7 | $ 7 | $ 7 | $ 7
Common stock purchases |  |  |  |  |  |  |  |  | 0 | 0 | 0
Conversions of class A to class B common stock |  |  |  |  |  |  |  |  | 0 | 0 | 0
Balance at end of period | $ 7 |  |  |  | $ 7 |  |  |  | 7 | 7 | 7
Additional Paid-In Capital: |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  |  |  | 0 |  |  |  | 0 | 0 | 0 | 0
Stock award plans |  |  |  |  |  |  |  |  | 541 | 492 | 656
Common stock purchases |  |  |  |  |  |  |  |  | (898) | (791) | (918)
Common stock issuances |  |  |  |  |  |  |  |  | 303 | 316 | 309
Option premiums received (paid) |  |  |  |  |  |  |  |  | 54 | (17) | (47)
Balance at end of period | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Retained Earnings: |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  |  |  | $ 6,001 |  |  |  | $ 5,726 | 6,001 | 5,726 | 6,925
Net income attributable to controlling interests |  |  |  |  |  |  |  |  | 3,431 | 4,844 | 3,032
Dividends ($3.12, $2.92 and $2.68 per share) |  |  |  |  |  |  |  |  | (2,771) | (2,649) | (2,487)
Common stock purchases |  |  |  |  |  |  |  |  | (1,782) | (1,920) | (1,744)
Balance at end of period | $ 4,879 |  |  |  | $ 6,001 |  |  |  | $ 4,879 | $ 6,001 | $ 5,726

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