XML 18 R6.htm IDEA: XBRL DOCUMENT v3.21.1
CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares
shares in Millions
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Statement of Financial Position [Abstract]      
Common stock, par value (in dollars per share) $ 0.33 $ 0.33 $ 0.33
Common stock, shares outstanding (in shares) 265.9 268.7 272.4