Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 131	$ 113
Other comprehensive income, net of tax:
Foreign currency translation adjustments	59	82
Pension and other postretirement benefits	14	11
Derivatives qualifying as hedges	12	(32)
Total other comprehensive income	85	61
Total comprehensive income	216	174
Net income attributable to noncontrolling interests	(28)	(23)
Translation adjustments attributable to noncontrolling interests	0	(1)
Comprehensive income attributable to Crown Holdings	$ 188	$ 150