Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income	$ 136.7	$ 90.8	$ 187.0	$ 150.2
Other comprehensive income (loss):
Defined benefit pension and other postretirement plans, net of income taxes	21.9	3.1	21.8	3.2
Currency translation adjustments	7.3	(16.9)	5.2	(23.3)
Gain (loss) from hedging activities, net of income taxes	(2.4)	(0.8)	(1.7)	(0.4)
Gain on securities available for sale	(0.6)	0	(0.5)	0
Total other comprehensive income (loss) attributable to noncontrolling interests	0	(0.4)	0.1	(0.2)
Total other comprehensive income	26.2	(15.0)	24.9	(20.7)
Comprehensive income	162.9	75.8	211.9	129.5
Less: comprehensive income attributable to noncontrolling interests	(0.5)	(0.1)	(0.8)	(0.6)
Comprehensive income attributable to W. R. Grace & Co. shareholders	$ 162.4	$ 75.7	$ 211.1	$ 128.9