Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Jul. 25, 2022
Cover [Abstract]
Document type	10-Q
Document quarterly report	true
Document period end date	Jun. 30, 2022
Document transition report	false
Entity file number	001-33988
Entity registrant name	Graphic Packaging Holding Co
Entity incorporation, state or country code	DE
Entity tax identification number	26-0405422
Entity address, address line one	1500 Riveredge Parkway, Suite 100
Entity address, city or town	Atlanta,
Entity address, state or province	GA
Entity address, postal zip code	30328
City area code	770
Local phone number	240-7200
Title of 12(b) security	Common Stock, $0.01 par value per share
Trading symbol	GPK
Security exchange name	NYSE
Entity current reporting status	Yes
Entity interactive data current	Yes
Entity filer category	Large Accelerated Filer
Entity small business	false
Entity emerging growth company	false
Entity shell company	false
Entity common stock, shares outstanding		307,828,032
Entity central index key	0001408075
Amendment flag	false
Document fiscal year focus	2022
Document fiscal period focus	Q2
Current fiscal year end date	--12-31