| Cover Page | Nov. 01, 2021 |
| Cover [Abstract] | |
| Entity Registrant Name | GRAPHIC PACKAGING HOLDING CO |
| Amendment Flag | true |
| Entity Central Index Key | 0001408075 |
| Document Type | 8-K/A |
| Document Period End Date | Nov. 1, 2021 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-33988 |
| Entity Tax Identification Number | 26-0405422 |
| Entity Address, Address Line One | 1500 Riveredge Parkway |
| Entity Address, Address Line Two | 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.01 par value per share |
| Trading Symbol | GPK |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Description | In this Current Report on Form 8-K/A, the “Company” and “GPHC” refers to Graphic Packaging Holding Company, a Delaware corporation, and its consolidated subsidiaries. On November 2, 2021, the Company filed a Current Report on Form 8-K (the “Original Filing”) in connection with the completion on November 1, 2021 of the acquisition of AR Packaging Group AB (“AR Packaging”) as contemplated by that certain Share Purchase Agreement dated May 12, 2021 among Sarcina Holdings S.a.r.l., the other sellers named therein and Graphic Packaging International Europe Holdings B.V, a subsidiary of GPHC. This Current Report on Form 8-K/A amends the Original Filing to include the financial statements and pro forma information required by Item 9.01 of Form 8-K. Except for the filing of such financial statements and pro forma information, this Form 8-K/A does not modify or update other disclosures in, or exhibits to, the Original Filing. |
