Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 3,046	$ 2,161	$ 5,243	$ 4,062
Cost of products sold, excluding depreciation and amortization	2,466	1,732	4,274	3,263
Depreciation and amortization	113	61	178	120
Selling and administrative expense	159	91	249	181
Restructuring and other	16	18	29	14
Income from operations	292	259	513	484
Other pension and postretirement	(17)	(12)	(34)	(24)
Loss from early extinguishments of debt	0	(7)	0	(7)
Interest expense	103	61	177	123
Interest income	(5)	(3)	(11)	(6)
Foreign exchange	10	5	28	4
Income before income taxes	201	201	353	380
Provision for income taxes	55	53	94	99
Equity earnings / (loss) in affiliates	1	0	1	0
Net income	147	148	260	281
Net income attributable to noncontrolling interests	(15)	(20)	(38)	(46)
Net income attributable to Crown Holdings	$ 132	$ 128	$ 222	$ 235
Earnings per common share attributable to Crown Holdings:
Basic (in usd per share)	$ 0.99	$ 0.95	$ 1.66	$ 1.72
Diluted (in usd per share)	$ 0.99	$ 0.94	$ 1.66	$ 1.71