XML 88 R48.htm IDEA: XBRL DOCUMENT v3.21.2
Earnings Per Share (EPS) - Computation of Basic and Diluted EPS Attributable to Common Stock (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Net income $ 77 $ 33 $ 269 $ 250
Weighted average shares of common stock outstanding (in shares) 66 67 66 68
Basic earnings per share (in dollars per share) $ 1.17 $ 0.49 $ 4.08 $ 3.69
Net income $ 77 $ 33 $ 269 $ 250
Dilutive effect of stock options and restricted stock units (in shares) 1 1 1 1
Weighted average shares of common stock outstanding - diluted (in shares) 67 68 67 69
Diluted earnings per share (in dollars per share) $ 1.16 $ 0.48 $ 4.03 $ 3.66
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect (in shares) 0 0 1 1