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Net Income (Loss) Attributable to Company Per Share - Computation of Weighted Average Basic and Diluted Shares Outstanding (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Numerator:        
Net loss attributable to Company $ (93) $ (5,389) $ (2,140) $ (5,466)
Denominator:        
Basic—weighted average common shares outstanding 385 382 384 381
Diluted outstanding shares 385 382 384 381
Basic $ (0.24) $ (14.11) $ (5.57) $ (14.35)
Diluted $ (0.24) (14.11) (5.57) (14.35)
Cash dividends per share   $ 0.05 $ 0.05 $ 0.10