Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net income	$ 57.5	$ 136.7	$ 110.3	$ 187.0
Other comprehensive income (loss):
Defined benefit pension and other postretirement plans, net of income taxes	(0.8)	21.9	(1.2)	21.8
Currency translation adjustments	(0.7)	7.3	(11.5)	5.2
Loss on securities available for sale, net of income taxes	1.6	(2.4)	(0.3)	(1.7)
Loss on securities available for sale, net of income taxes	0.0	(0.6)	0.0	(0.5)
Total other comprehensive income attributable to noncontrolling interests	(0.6)	0.0	(0.7)	(0.1)
Total other comprehensive income (loss)	0.7	26.2	(12.3)	24.9
Comprehensive income	58.2	162.9	98.0	211.9
Less: comprehensive income attributable to noncontrolling interests	(0.7)	(0.5)	(0.9)	(0.8)
Comprehensive income attributable to W. R. Grace & Co. shareholders	$ 57.5	$ 162.4	$ 97.1	$ 211.1