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Condensed Consolidated Statement of Stockholders' Equity Statement - USD ($)
$ in Millions
Total
Treasury stock
Accumulated other comprehensive income (loss)
Retained earnings
Capital in excess of par value
Common Stock
Balance at beginning of period at Dec. 31, 2019 $ 9,832 $ (10,441) $ (61) $ 17,945 $ 1,581 $ 808
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Repurchase of common stock (451) (451) 0 0 0 0
Issuance of common and treasury stock pursuant to Employee stock plans (2) (6) 0 0 8 0
Share-based compensation $ 9 0 0 0 9 0
Cash dividends, per share (in dollars per share) $ 0.180          
Cash dividends $ (94) 0 0 (94) 0 0
Comprehensive income (loss) (219) 0 (125) (94) 0 0
Balance at end of period at Mar. 31, 2020 9,075 (10,886) (186) 17,757 1,582 808
Balance at beginning of period at Dec. 31, 2020 8,876 (10,875) (105) 14,777 4,191 888
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common and treasury stock pursuant to Employee stock plans 0 (8) 0 0 8 0
Share-based compensation 14 0 0 0 14 0
Stock warrants 23 0 0 0 23 0
Comprehensive income (loss) 180 0 64 116 0 0
Balance at end of period at Mar. 31, 2021 9,093 (10,867) (60) 14,912 4,220 888
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Cumulative effect of new accounting standards $ 0 $ 0 $ (19) $ 19 $ 0 $ 0