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Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]        
Dividends declared (usd per share) $ 0.86 $ 0.84 $ 1.72 $ 1.68
Net earnings attributable to noncontrolling interests $ 1   $ 2 $ 1