Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Graphic Packaging Holding Company
Net (Loss) Income Attributable to Graphic Packaging Holding Company	$ (12.7)	$ 57.9
Other Comprehensive Income (Loss), Net of Tax
Derivative Instruments	(1.0)	(0.4)
Pension and Postretirement Benefit Plans	113.3	1.2
Currency Translation Adjustment	(46.0)	3.9
Total Other Comprehensive Income (Loss), Net of Tax	66.3	4.7
Total Comprehensive Income (Loss)	53.6	62.6
Noncontrolling Interest
Net (Loss) Income	(1.8)	15.6
Other Comprehensive Income (Loss), Net of Tax
Derivative Instruments	(0.3)	(0.1)
Pension and Postretirement Benefit Plans	32.4	0.2
Currency Translation Adjustment	(10.0)	0.9
Total Other Comprehensive Income, Net of Tax	22.1	1.0
Total Comprehensive Income	20.3	16.6
Redeemable Noncontrolling Interest
Net (Loss) Income	(5.3)	4.6
Other Comprehensive Income (Loss), Net Of Tax
Derivative Instruments	(0.1)	0.0
Pension and Postretirement Benefit Plans	9.4	0.1
Currency Translation Adjustment	(0.9)	0.2
Total Other Comprehensive Income (Loss), Net of Tax	8.4	0.3
Total Comprehensive Income	3.1	4.9
Total
Net (Loss) Income	(19.8)	78.1
Other Comprehensive Income (Loss), Net of Tax
Derivative Instruments	(1.4)	(0.5)
Pension and Postretirement Benefit Plans	155.1	1.5
Currency Translation Adjustment	(56.9)	5.0
Total Other Comprehensive Income, Net of Tax	96.8	6.0
Total Comprehensive Income	$ 77.0	$ 84.1