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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Net income attributable to Colgate-Palmolive Company    
Basic EPS $ 681 $ 715
Diluted EPS $ 681 $ 715
Shares (millions)    
Basic EPS (in shares) 848,600,000 856,900,000
Stock options and restricted stock units (in shares) 2,800,000 1,500,000
Diluted EPS (in shares) 851,400,000 858,400,000
Per Share    
Basic EPS (in dollars per share) $ 0.80 $ 0.83
Diluted EPS (in dollars per share) $ 0.80 $ 0.83
Antidilutive securities excluded from computation of earnings per share (in shares) 2,721,084 20,965,110