Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 230.1	$ 89.0	$ 146.7
Other Comprehensive (Loss) Income, Net of Tax:
Derivative Instruments	(0.7)	(6.9)	3.2
Currency Translation Adjustment	(37.2)	(34.0)	(13.7)
Pension and Postretirement Benefit Plans	26.8	(105.2)	134.0
Total Other Comprehensive (Loss) Income, Net of Tax	(11.1)	(146.1)	123.5
Total Comprehensive Income (Loss)	219.0	(57.1)	270.2
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	0.0	0.4	(0.5)
Comprehensive Income (Loss) Attributable to Graphic Packaging Holding Company	$ 219.0	$ (56.7)	$ 269.7