Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Net income attributable to Crown Holdings	$ 183	$ 141	$ 431	$ 327
Weighted average shares outstanding:
Basic (in shares)	138.7	138.1	138.4	137.9
Add: dilutive stock options and restricted stock (in shares)	0.8	1.0	1.0	1.1
Diluted (in shares)	139.5	139.1	139.4	139.0
Basic earnings per share (in usd per share)	$ 1.32	$ 1.02	$ 3.11	$ 2.37
Diluted earnings per share (in usd per share)	$ 1.31	$ 1.01	$ 3.09	$ 2.35
Shares excluded from the computation of diluted earnings per share	0.1		0.5