Annual report pursuant to Section 13 and 15(d)

SHAREOWNERS' EQUITY - Roll-forward of Common Stock, Additional Paid-in Capital, and Retained Earnings Accounts (Detail)

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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, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Common stock purchases, Shares                 (9.1) (8.9) (16.1)
Balance at beginning of year       $ 3,021         $ 3,021    
Net income attributable to controlling interests $ (106) $ 1,750 $ 1,685 1,111 $ 453 $ 1,508 $ 1,485 $ 1,345 4,440 $ 4,791 $ 4,905
Common stock purchases                 (1,005) (1,000) (1,816)
Balance at end of year 3,267       3,021       3,267 3,021  
Payments for Repurchase of Common Stock                 1,004 1,011 1,813
Stockholders' Equity, Other                 0 (42) (2)
Balance at beginning of year       $ 16         16    
Balance at beginning of year $ 16       $ 16       16 16  
Dividends [Domain] | Class A Common Stock:                      
Stockholders Equity Note [Line Items]                      
Dividends, Common Stock, Stock                 $ 147 $ 178 $ 157
Common Stock | Class A Common Stock:                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Balance at beginning of year, Shares       163.0       173.0 163.0 173.0 180.0
Common stock purchases, Shares                 (3.0) (3.0) (4.0)
Stock award plans, Shares                 5.0 3.0 4.0
Common stock issuances, Shares                 3.0 4.0 3.0
Conversions of class A to class B common stock, Shares                 (12.0) (14.0) (10.0)
Balance at end of year, Shares 156.0       163.0       156.0 163.0 173.0
Balance at beginning of year       $ 2       $ 2 $ 2 $ 2 $ 2
Stock award plans                 0 0 0
Common stock purchases                 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 year $ 2       $ 2       $ 2 $ 2 $ 2
Common Stock | Class B Common Stock:                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Balance at beginning of year, Shares       696.0       687.0 696.0 687.0 689.0
Common stock purchases, Shares                 (7.0) (5.0) (12.0)
Conversions of class A to class B common stock, Shares                 12.0 14.0 10.0
Balance at end of year, Shares 701.0       696.0       701.0 696.0 687.0
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 year $ 7       $ 7       7 7 7
Additional Paid-In Capital:                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Option Premiums Received (Paid)                 21 34 54
Balance at beginning of year       0       0 0 0 0
Stock award plans                 778 419 396
Common stock purchases                 (1,005) (859) (813)
Common stock issuances                 356 406 363
Balance at end of year 150       0       150 0 0
Retained Earnings:                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Balance at beginning of year       8,006       5,852 8,006 5,852 4,880
Net income attributable to controlling interests                 4,440 4,791 4,905
Dividends ($3.84, $3.64, and $3.32 per share) (1)                 (3,341) (3,189) (2,928)
Common stock purchases                 0 (141) (1,003)
Balance at end of year 9,105       8,006       9,105 8,006 5,852
Cumulative Effect of New Accounting Principle in Period of Adoption 0       735       0 735 0
Noncontrolling Interest [Member]                      
Increase (Decrease) in Stockholders' Equity [Roll Forward]                      
Balance at beginning of year       $ 16       $ 30 16 30 24
Change in non-controlling interests                 0 (14) 6
Balance at beginning of year $ 16       $ 16       $ 16 $ 16 $ 30