v3.19.3.a.u2
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Allowances for doubtful accounts $ 1,235 $ 907
Preferred stock, par value $ 1  
Preferred stock, dividend rate 5.00%  
Preferred stock, authorized (in shares) 10,000,000  
Preferred stock, issued (in shares) 48,000 0
Preferred stock, outstanding (in shares) 48,000 0
Common stock, par value $ 1.00 $ 1
Common stock, authorized 14,000,000,000 14,000,000,000
Common stock, issued 7,620,748,598 7,620,748,598
Treasury stock, held 366,193,458 339,120,073