$GPK
GRAPHIC PACKAGING HOLDING CO Stock $gpk

$gpk Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000140807520000009 Filed on February 11, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2018 Q3
Revenue	$1.520B	$1.509B	$1.532B
YoY Change	0.7%	35.99%	34.65%
Cost Of Revenue	$1.248B	$1.277B	$1.274B
YoY Change	-2.28%	36.33%	34.17%
Gross Profit	$272.3M	$232.7M	$258.3M
YoY Change	17.02%	32.22%	34.81%
Gross Profit Margin	17.92%	15.42%	16.86%
Selling, General & Admin	$124.0M	$114.7M	$118.6M
YoY Change	8.11%	47.05%	29.76%
% of Gross Profit	45.54%	49.29%	45.92%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$109.4M	$98.80M	$110.7M
YoY Change	10.73%	6.12%	27.24%
% of Gross Profit	40.18%	42.46%	42.86%
Operating Expenses	$125.7M	$117.8M	$118.6M
YoY Change	6.71%	47.99%	29.76%
Operating Profit	$133.0M	$107.5M	$166.4M
YoY Change	23.72%	32.55%	82.06%
Interest Expense	-$34.20M	-$33.60M	$31.00M
YoY Change	1.79%	44.21%	37.17%
% of Operating Profit	-25.71%	-31.26%	18.63%
Other Income/Expense, Net	-$39.40M	$2.500M	$4.100M
YoY Change	-1676.0%	-19.35%	2.5%
Pretax Income	$59.40M	$76.40M	$139.5M
YoY Change	-22.25%	25.45%	91.62%
Income Tax	$15.40M	$13.30M	$17.80M
% Of Pretax Income	25.93%	17.41%	12.76%
Net Earnings	$33.00M	$47.50M	$94.30M
YoY Change	-30.53%	-72.69%	99.37%
Net Earnings / Revenue	2.17%	3.15%	6.16%
Basic Earnings Per Share	$0.11	$0.16	$0.30
Diluted Earnings Per Share	$0.11	$0.15	$0.30
COMMON SHARES
Basic Shares Outstanding	290.2M shares	310.4M shares	310.8M shares
Diluted Shares Outstanding			311.5M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$152.9M	$70.50M	$39.70M
YoY Change	116.88%	4.6%	130.81%
Cash & Equivalents	$152.9M	$70.50M	$39.70M
Short-Term Investments
Other Short-Term Assets	$52.30M	$106.0M	$65.60M
YoY Change	-50.66%	-28.09%	46.1%
Inventory	$1.096B	$1.014B	$1.031B
Prepaid Expenses	$41.20M	$28.60M
Receivables	$451.2M	$465.5M	$816.0M
Other Receivables	$53.30M	$107.4M	$0.00
Total Short-Term Assets	$1.806B	$1.764B	$1.952B
YoY Change	2.37%	50.77%	59.66%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.254B	$3.240B	$3.152B
YoY Change	0.44%	73.51%	73.09%
Goodwill	$1.478B	$1.461B	$1.562B
YoY Change	1.19%	10.4%	19.29%
Intangibles	$477.3M	$523.8M	$551.5M
YoY Change	-8.88%	20.0%	22.66%
Long-Term Investments
YoY Change
Other Assets	$275.3M	$71.30M	$89.50M
YoY Change	286.12%	7.38%	138.67%
Total Long-Term Assets	$5.484B	$5.295B	$5.355B
YoY Change	3.57%	43.39%	48.03%
TOTAL ASSETS
Total Short-Term Assets	$1.806B	$1.764B	$1.952B
Total Long-Term Assets	$5.484B	$5.295B	$5.355B
Total Assets	$7.290B	$7.059B	$7.307B
YoY Change	3.27%	45.16%	50.97%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$716.1M	$711.6M	$642.7M
YoY Change	0.63%	37.77%	32.05%
Accrued Expenses	$423.7M	$408.7M	$474.7M
YoY Change	3.67%	49.38%	68.87%
Deferred Revenue
YoY Change
Short-Term Debt	$9.300M	$11.70M	$0.00
YoY Change	-20.51%	28.57%
Long-Term Debt Due	$36.50M	$36.50M	$51.90M
YoY Change	0.0%	-27.0%	4.64%
Total Short-Term Liabilities	$1.199B	$1.172B	$1.169B
YoY Change	2.25%	37.69%	43.05%
LONG-TERM LIABILITIES
Long-Term Debt	$2.810B	$2.905B	$2.881B
YoY Change	-3.28%	31.26%	29.46%
Other Long-Term Liabilities	$266.8M	$117.8M	$168.7M
YoY Change	126.49%	12.51%	108.79%
Total Long-Term Liabilities	$3.077B	$3.023B	$3.049B
YoY Change	1.78%	30.42%	32.24%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.199B	$1.172B	$1.169B
Total Long-Term Liabilities	$3.077B	$3.023B	$3.049B
Total Liabilities	$4.275B	$4.195B	$4.219B
YoY Change	1.91%	32.37%	35.07%
SHAREHOLDERS EQUITY
Retained Earnings	$56.40M	$10.00M	$47.80M
YoY Change	464.0%	-117.86%	-123.14%
Common Stock	$1.877B	$1.944B	$2.079B
YoY Change	-3.48%	15.49%	23.76%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.570B	$1.580B	$1.789B
YoY Change
Total Liabilities & Shareholders Equity	$7.290B	$7.059B	$7.307B
YoY Change	3.27%	45.16%	50.97%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018 Q3
OPERATING ACTIVITIES
Net Income	$33.00M	$47.50M	$94.30M
YoY Change	-30.53%	-72.69%	99.37%
Depreciation, Depletion And Amortization	$109.4M	$98.80M	$110.7M
YoY Change	10.73%	6.12%	27.24%
Cash From Operating Activities	$365.1M	-$73.80M	$200.0K
YoY Change	-594.72%	-0.54%	-101.39%
INVESTING ACTIVITIES
Capital Expenditures	-$123.0M	-$125.2M	-$96.60M
YoY Change	-1.76%	100.96%	81.24%
Acquisitions
YoY Change
Other Investing Activities	$20.10M	$454.0M	$157.2M
YoY Change	-95.57%	102.05%	327.17%
Cash From Investing Activities	-$102.9M	$328.8M	$60.60M
YoY Change	-131.3%	102.46%	-467.27%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-160.0M	-223.5M	-72.00M
YoY Change	-28.41%	485.08%	-305.71%
NET CHANGE
Cash From Operating Activities	365.1M	-73.80M	200.0K
Cash From Investing Activities	-102.9M	328.8M	60.60M
Cash From Financing Activities	-160.0M	-223.5M	-72.00M
Net Change In Cash	102.2M	31.50M	-11.20M
YoY Change	224.44%	-37.0%	-373.17%
FREE CASH FLOW
Cash From Operating Activities	$365.1M	-$73.80M	$200.0K
Capital Expenditures	-$123.0M	-$125.2M	-$96.60M
Free Cash Flow	$488.1M	$51.40M	$96.80M
YoY Change	849.61%	-531.93%	148.84%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001408075
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	290324561	shares
CY2019	gpk	Restructuring And Related Costs Term Of Program RestructuringAndRelatedCostsTermOfProgram	P3Y
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	001-33988
CY2019	dei	Entity Registrant Name EntityRegistrantName	Graphic Packaging Holding Co
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-0405422
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	1500 Riveredge Parkway, Suite 100
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Atlanta
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	GA
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	30328
CY2019	dei	City Area Code CityAreaCode	770
CY2019	dei	Local Phone Number LocalPhoneNumber	240-7200
CY2019	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
CY2019	dei	Trading Symbol TradingSymbol	GPK
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	4100000000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	290324561	shares
CY2019	us-gaap	Revenues Revenues	6160100000	USD
CY2018	us-gaap	Revenues Revenues	6029400000	USD
CY2017	us-gaap	Revenues Revenues	4405600000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	5067500000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	5077000000.0	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	3696100000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	511800000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	472100000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	347500000	USD
CY2019	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-8800000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-7200000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-3000000.0	USD
CY2019	gpk	Business Combinations Gain Loss On Sale Of Assets And Shutdown And Other Special Charges Net BusinessCombinationsGainLossOnSaleOfAssetsAndShutdownAndOtherSpecialChargesNet	37900000	USD
CY2018	gpk	Business Combinations Gain Loss On Sale Of Assets And Shutdown And Other Special Charges Net BusinessCombinationsGainLossOnSaleOfAssetsAndShutdownAndOtherSpecialChargesNet	14900000	USD
CY2017	gpk	Business Combinations Gain Loss On Sale Of Assets And Shutdown And Other Special Charges Net BusinessCombinationsGainLossOnSaleOfAssetsAndShutdownAndOtherSpecialChargesNet	31100000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	534100000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	458200000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	327900000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	39500000	USD
CY2018	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-14900000	USD
CY2017	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-14800000	USD
CY2019	us-gaap	Interest Expense InterestExpense	140600000	USD
CY2018	us-gaap	Interest Expense InterestExpense	123700000	USD
CY2017	us-gaap	Interest Expense InterestExpense	89700000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1900000	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	354000000.0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	347500000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	253000000.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	76300000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54700000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-45500000	USD
CY2019	gpk	Income Loss Before Equity Income Of Unconsolidated Entities IncomeLossBeforeEquityIncomeOfUnconsolidatedEntities	277700000	USD
CY2018	gpk	Income Loss Before Equity Income Of Unconsolidated Entities IncomeLossBeforeEquityIncomeOfUnconsolidatedEntities	292800000	USD
CY2017	gpk	Income Loss Before Equity Income Of Unconsolidated Entities IncomeLossBeforeEquityIncomeOfUnconsolidatedEntities	298500000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1200000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1700000	USD
CY2019	gpk	Net Income Loss Including Portion Attributable To Redeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	278100000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	294000000.0	USD
CY2017	us-gaap	Profit Loss ProfitLoss	300200000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	71300000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	72900000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	206800000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	221100000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	300200000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.97
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2019	us-gaap	Net Income Loss NetIncomeLoss	206800000	USD
CY2019	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	55000000.0	USD
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	16300000	USD
CY2019	gpk	Net Income Loss Including Portion Attributable To Redeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	278100000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-5300000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxNoncontrollingInterest	-1500000	USD
CY2019	gpk	Other Comprehensive Income Loss Cash Flow Hedges Gain Loss After Reclassification And Tax Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgesGainLossAfterReclassificationAndTaxNonredeemableNoncontrollingInterest	-400000	USD
CY2019	gpk	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxIncludingRedeemableNoncontrollingInterest	-7200000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-7600000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-2300000	USD
CY2019	gpk	Other Comprehensive Income Loss Defined Benefit Plan After Tax And Reclassification Adjustment Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDefinedBenefitPlanAfterTaxAndReclassificationAdjustmentAttributableToRedeemableNoncontrollingInterest	-700000	USD
CY2019	gpk	Other Comprehensive Income Loss Defined Benefit Plan After Reclassification Adjustment After Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDefinedBenefitPlanAfterReclassificationAdjustmentAfterTaxIncludingRedeemableNoncontrollingInterest	-10600000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	9800000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	2100000	USD
CY2019	gpk	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	500000	USD
CY2019	gpk	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxIncludingRedeemableNoncontrollingInterest	12400000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12100000	USD
CY2019	gpk	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	2900000	USD
CY2019	gpk	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	800000	USD
CY2019	gpk	Other Comprehensive Income Loss Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNoncontrollingInterest	15800000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	218900000	USD
CY2019	gpk	Comprehensive Income Loss Net Of Tax Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToNonredeemableNoncontrollingInterest	57900000	USD
CY2019	gpk	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	17100000	USD
CY2019	gpk	Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableNoncontrollingInterest	293900000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	221100000	USD
CY2018	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	56300000	USD
CY2018	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	16600000	USD
CY2018	gpk	Net Income Loss Including Portion Attributable To Redeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	294000000.0	USD
CY2018	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-1000000.0	USD
CY2018	gpk	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-200000	USD
CY2018	gpk	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-100000	USD
CY2018	gpk	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxIncludingRedeemableNoncontrollingInterest	-1300000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	19400000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	4700000	USD
CY2018	gpk	Other Comprehensive Income Loss Defined Benefit Plan After Tax And Reclassification Adjustment Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDefinedBenefitPlanAfterTaxAndReclassificationAdjustmentAttributableToRedeemableNoncontrollingInterest	1400000	USD
CY2018	gpk	Other Comprehensive Income Loss Defined Benefit Plan After Reclassification Adjustment After Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDefinedBenefitPlanAfterReclassificationAdjustmentAfterTaxIncludingRedeemableNoncontrollingInterest	25500000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-18700000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-4500000	USD
CY2018	gpk	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-1300000	USD
CY2018	gpk	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxIncludingRedeemableNoncontrollingInterest	-24500000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-39100000	USD
CY2018	gpk	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-9400000	USD
CY2018	gpk	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-2800000	USD
CY2018	gpk	Other Comprehensive Income Loss Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNoncontrollingInterest	-51300000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	182000000.0	USD
CY2018	gpk	Comprehensive Income Loss Net Of Tax Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToNonredeemableNoncontrollingInterest	46900000	USD
CY2018	gpk	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	13800000	USD
CY2018	gpk	Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableNoncontrollingInterest	242700000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	300200000	USD
CY2017	us-gaap	Net Income Loss Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2017	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017	gpk	Net Income Loss Including Portion Attributable To Redeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	300200000	USD
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-4900000	USD
CY2017	gpk	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxIncludingRedeemableNoncontrollingInterest	-4900000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-8800000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Defined Benefit Plan After Tax And Reclassification Adjustment Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDefinedBenefitPlanAfterTaxAndReclassificationAdjustmentAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Defined Benefit Plan After Reclassification Adjustment After Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossDefinedBenefitPlanAfterReclassificationAdjustmentAfterTaxIncludingRedeemableNoncontrollingInterest	-8800000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	44900000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxIncludingRedeemableNoncontrollingInterest	44900000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	48800000	USD
CY2017	gpk	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017	gpk	Other Comprehensive Income Loss Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNoncontrollingInterest	48800000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	349000000.0	USD
CY2017	gpk	Comprehensive Income Loss Net Of Tax Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToNonredeemableNoncontrollingInterest	0	USD
CY2017	gpk	Comprehensive Income Loss Net Of Tax Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxAttributableToRedeemableNoncontrollingInterest	0	USD
CY2017	gpk	Comprehensive Income Loss Net Of Tax Including Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToRedeemableNoncontrollingInterest	349000000.0	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	152900000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70500000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	504500000	USD
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	572900000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	1095900000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	1014400000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	52300000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	106000000.0	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	1805600000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	1763800000	USD
CY2019Q4	gpk	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	3253800000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3239700000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	1477900000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1460600000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	477300000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	523800000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	275300000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	71300000	USD
CY2019Q4	us-gaap	Assets Assets	7289900000	USD
CY2018Q4	us-gaap	Assets Assets	7059200000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	50400000	USD
CY2018Q4	us-gaap	Debt Current DebtCurrent	52000000.0	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	716100000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	711600000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	168400000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	154400000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	24700000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	13600000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	239100000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	240700000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1198700000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1172300000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2809900000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2905100000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	511800000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	462200000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	140400000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	107500000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	266800000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	117800000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	304300000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	275800000	USD
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	290246907	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	290246907	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	299891585	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	299891585	shares
CY2019Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	2900000	USD
CY2018Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	3000000.0	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1876700000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1944400000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	56400000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	10000000.0	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-365800000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-377900000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1570200000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1579500000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	487800000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	439000000.0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2058000000.0	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2018500000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7289900000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	7059200000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1056500000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	300200000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-4900000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-8800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	44900000	USD
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	58400000	USD
CY2017	us-gaap	Dividends Dividends	93100000	USD
CY2017	gpk	Pre2017 Excess Tax Benefit Related To Share Based Payments Pre2017ExcessTaxBenefitRelatedToShareBasedPayments	39100000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	-1200000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1291900000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	732400000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	277400000	USD
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	12500000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	19400000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-1200000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	24100000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-23200000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	120000000.0	USD
CY2018	us-gaap	Dividends Dividends	92300000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9500000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2018500000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	206800000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	261800000	USD
CY2019	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-12500000	USD
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-30200000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	21600000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-6800000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-9900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	11900000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	127900000	USD
CY2019	us-gaap	Dividends Dividends	87700000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	17600000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2058000000.0	USD
CY2019	gpk	Net Income Loss Including Portion Attributable To Redeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToRedeemableNoncontrollingInterest	278100000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	294000000.0	USD
CY2017	us-gaap	Profit Loss ProfitLoss	300200000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	447200000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	430600000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	330300000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4700000	USD
CY2018	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	4400000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5100000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	52700000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	26000000.0	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-54000000.0	USD
CY2019	gpk	Postretirement Benefit Period Expense Greater Less Than Funding PostretirementBenefitPeriodExpenseGreaterLessThanFunding	41500000	USD
CY2018	gpk	Postretirement Benefit Period Expense Greater Less Than Funding PostretirementBenefitPeriodExpenseGreaterLessThanFunding	-4700000	USD
CY2017	gpk	Postretirement Benefit Period Expense Greater Less Than Funding PostretirementBenefitPeriodExpenseGreaterLessThanFunding	-127100000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	38600000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	3700000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-15100000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-35300000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2000000.0	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	173500000	USD
CY2018	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	1120800000	USD
CY2017	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	645300000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	665800000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-373800000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-192500000	USD
CY2019	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	330900000	USD
CY2018	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	378800000	USD
CY2017	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	240900000	USD
CY2019	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	22000000.0	USD
CY2018	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	16400000	USD
CY2017	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	19200000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	54500000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	89400000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	189400000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	49400000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	7900000	USD
CY2019	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	343600000	USD
CY2018	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	1476700000	USD
CY2017	us-gaap	Proceeds From Sale Of Notes Receivable ProceedsFromSaleOfNotesReceivable	806100000	USD
CY2019	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	155900000	USD
CY2018	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	345500000	USD
CY2017	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	97400000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	4600000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	6900000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1000000.0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-224300000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	689100000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	268100000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	128800000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	119100000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	62100000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	36500000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	152400000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	25000000.0	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	300000000.0	USD
CY2018	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	0	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2497500000	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1876900000	USD
CY2017	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1202900000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	2865100000	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1787500000	USD
CY2017	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	1090800000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5000000.0	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7900000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4100000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4300000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10200000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	112700000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	111000000.0	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	93400000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6100000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5400000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	8800000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-360800000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-310700000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-69800000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1700000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1500000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2500000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	82400000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	3100000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	8300000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	70500000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	67400000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	59100000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	152900000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	70500000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	67400000	USD
CY2019	gpk	Noncash Repurchase Of Receivables Consideration For Beneficial Interest Asset Securitization Program NoncashRepurchaseOfReceivablesConsiderationForBeneficialInterestAssetSecuritizationProgram	68800000	USD
CY2018	us-gaap	Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset	1025700000	USD
CY2017	us-gaap	Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset	734700000	USD
CY2019	gpk	Non Cash Or Part Non Cash Acquisition Net Non Monetary Assets Acquired Liabilities Assumed Investing Activities NonCashOrPartNonCashAcquisitionNetNonMonetaryAssetsAcquiredLiabilitiesAssumedInvestingActivities	0	USD
CY2018	gpk	Non Cash Or Part Non Cash Acquisition Net Non Monetary Assets Acquired Liabilities Assumed Investing Activities NonCashOrPartNonCashAcquisitionNetNonMonetaryAssetsAcquiredLiabilitiesAssumedInvestingActivities	1111200000	USD
CY2017	gpk	Non Cash Or Part Non Cash Acquisition Net Non Monetary Assets Acquired Liabilities Assumed Investing Activities NonCashOrPartNonCashAcquisitionNetNonMonetaryAssetsAcquiredLiabilitiesAssumedInvestingActivities	0	USD
CY2019	gpk	Noncash Investing Activities NoncashInvestingActivities	-68800000	USD
CY2018	gpk	Noncash Investing Activities NoncashInvestingActivities	2136900000	USD
CY2017	gpk	Noncash Investing Activities NoncashInvestingActivities	734700000	USD
CY2019	gpk	Non Cash Or Part Non Cash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed Financing Activities NonCashOrPartNonCashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumedFinancingActivities	0	USD
CY2018	gpk	Non Cash Or Part Non Cash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed Financing Activities NonCashOrPartNonCashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumedFinancingActivities	660000000.0	USD
CY2017	gpk	Non Cash Or Part Non Cash Acquisition Net Nonmonetary Assets Acquired Liabilities Assumed Financing Activities NonCashOrPartNonCashAcquisitionNetNonmonetaryAssetsAcquiredLiabilitiesAssumedFinancingActivities	0	USD
CY2019	gpk	Noncash Financing Activities NoncashFinancingActivities	0	USD
CY2018	gpk	Noncash Financing Activities NoncashFinancingActivities	660000000.0	USD
CY2017	gpk	Noncash Financing Activities NoncashFinancingActivities	0	USD
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	20800000	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	20800000	shares
CY2019	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesThe preparation of financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses during the reporting periods. Actual results could differ from these estimates, and changes in these estimates are recorded when known. Estimates are used in accounting for, among other things, pension benefits, retained insurable risks, slow-moving and obsolete inventory, allowance for doubtful accounts, useful lives for depreciation and amortization, impairment testing of goodwill and long-lived assets, fair values related to acquisition accounting, fair value of derivative financial instruments, share based compensation, deferred income tax assets and potential income tax assessments, and loss contingencies.
CY2019Q4	us-gaap	Transfer Of Financial Assets Accounted For As Sales Amount Derecognized TransferOfFinancialAssetsAccountedForAsSalesAmountDerecognized	2654200000	USD
CY2018Q4	us-gaap	Transfer Of Financial Assets Accounted For As Sales Amount Derecognized TransferOfFinancialAssetsAccountedForAsSalesAmountDerecognized	3314800000	USD
CY2019Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Amount Collected By Financial Institution TransferOfFinancialAssetsAccountedForAsSalesAmountCollectedByFinancialInstitution	2254900000	USD
CY2018Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Amount Collected By Financial Institution TransferOfFinancialAssetsAccountedForAsSalesAmountCollectedByFinancialInstitution	3153400000	USD
CY2019Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Amount Funded By Financial Institution TransferOfFinancialAssetsAccountedForAsSalesAmountFundedByFinancialInstitution	66500000	USD
CY2018Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Amount Funded By Financial Institution TransferOfFinancialAssetsAccountedForAsSalesAmountFundedByFinancialInstitution	13400000	USD
CY2019Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Receivable TransferOfFinancialAssetsAccountedForAsSalesReceivable	700000	USD
CY2018Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Receivable TransferOfFinancialAssetsAccountedForAsSalesReceivable	66900000	USD
CY2019Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Pledged Receivable TransferOfFinancialAssetsAccountedForAsSalesPledgedReceivable	177500000	USD
CY2018Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Pledged Receivable TransferOfFinancialAssetsAccountedForAsSalesPledgedReceivable	43000000.0	USD
CY2019	gpk	Transfer Of Financial Assets Accounted For As Sales Amount Sold TransferOfFinancialAssetsAccountedForAsSalesAmountSold	238000000	USD
CY2018	gpk	Transfer Of Financial Assets Accounted For As Sales Amount Sold TransferOfFinancialAssetsAccountedForAsSalesAmountSold	119000000	USD
CY2019Q4	gpk	Factoring Arrangement Amount Transferred Subject To Continuing Involvement FactoringArrangementAmountTransferredSubjectToContinuingInvolvement	562000000	USD
CY2018Q4	gpk	Factoring Arrangement Amount Transferred Subject To Continuing Involvement FactoringArrangementAmountTransferredSubjectToContinuingInvolvement	559000000	USD
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Concentration of Credit RiskThe Company’s cash, cash equivalents, and accounts receivable are potentially subject to concentration of credit risk. Cash and cash equivalents are placed with financial institutions that management believes are of high credit quality. Accounts receivable are derived from revenue earned from customers located in the U.S. and internationally and generally do not require collateral.
CY2019Q4	gpk	Interest Costs Capitalization Threshold InterestCostsCapitalizationThreshold	1000000.0	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2800000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2800000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1200000	USD
CY2019	us-gaap	Depreciation Depreciation	387900000	USD
CY2018	us-gaap	Depreciation Depreciation	360600000	USD
CY2017	us-gaap	Depreciation Depreciation	268500000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1085300000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	608000000.0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	477300000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1071000000.0	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	547200000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	523800000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	59300000	USD
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	70000000.0	USD
CY2017	us-gaap	Adjustment For Amortization AdjustmentForAmortization	61800000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	62000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	59000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	57000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	55000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	53000000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	1323000000.0	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	141300000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-3700000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1460600000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	12900000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	4400000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	1477900000	USD
CY2019	gpk	Revenue Recognition Number Of Revenue Generating Activities RevenueRecognitionNumberOfRevenueGeneratingActivities	2	revenue_generating_activity
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6140800000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6011900000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4384900000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	24300000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	19600000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	49600000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	42500000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	9200000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	8700000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	14400000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4100000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	46800000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	16200000	USD
CY2019	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	23600000	USD
CY2018	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	6700000	USD
CY2017	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	18600000	USD
CY2019	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	10200000	USD
CY2018	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	0	USD
CY2017	us-gaap	Restructuring And Related Cost Incurred Cost RestructuringAndRelatedCostIncurredCost	0	USD
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	0	USD
CY2018	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	38600000	USD
CY2017	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	3700000	USD
CY2019	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	37900000	USD
CY2018	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	14900000	USD
CY2017	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	31100000	USD
CY2019Q3	gpk	Business Combination Number Of Facilities Acquired BusinessCombinationNumberOfFacilitiesAcquired	2	facility
CY2019Q3	gpk	Business Acquisition Number Of Mills Acquired BusinessAcquisitionNumberOfMillsAcquired	1	mill
CY2019	gpk	Number Of Previous Share Repurchase Plans Previously Authorized NumberOfPreviousShareRepurchasePlansPreviouslyAuthorized	2	plan
CY2017Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	250000000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	127900000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	10191257	shares
CY2019Q4	us-gaap	Share Price SharePrice	12.55
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	120000000.0	USD
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	10566144	shares
CY2018Q4	us-gaap	Share Price SharePrice	11.35
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	58400000	USD
CY2017	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4462263	shares
CY2017Q4	us-gaap	Share Price SharePrice	13.08
CY2019Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	462000000	USD
CY2019	gpk	Dividends Paid To External Parties DividendsPaidToExternalParties	88700000	USD
CY2018	gpk	Dividends Paid To External Parties DividendsPaidToExternalParties	93100000	USD
CY2019Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Receivable TransferOfFinancialAssetsAccountedForAsSalesReceivable	700000	USD
CY2018Q4	gpk	Transfer Of Financial Assets Accounted For As Sales Receivable TransferOfFinancialAssetsAccountedForAsSalesReceivable	66900000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	41200000	USD
CY2019Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	462700000	USD
CY2018Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	475900000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	11500000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10400000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	451200000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	465500000	USD
CY2019Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	53300000	USD
CY2018Q4	us-gaap	Other Receivables Net Current OtherReceivablesNetCurrent	107400000	USD
CY2019Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	504500000	USD
CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	572900000	USD
CY2019Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	123400000	USD
CY2018Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	102200000	USD
CY2019Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	370000000.0	USD
CY2019Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	434800000	USD
CY2018Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	426900000	USD
CY2018Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	319900000	USD
CY2019Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	167700000	USD
CY2018Q4	us-gaap	Inventory Supplies Net Of Reserves InventorySuppliesNetOfReserves	165400000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	1095900000	USD
CY2018Q4	us-gaap	Inventory Net InventoryNet	1014400000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	28600000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	10400000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	9800000	USD
CY2019Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	0	USD
CY2018Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	700000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	52300000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	106000000.0	USD
CY2019Q4	gpk	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	6821100000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	6660000000.0	USD
CY2019Q4	gpk	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	3567300000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3420300000	USD
CY2019Q4	gpk	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	3253800000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3239700000	USD
CY2019Q4	us-gaap	Accumulated Amortization Of Debt Issuance Costs Line Of Credit Arrangements AccumulatedAmortizationOfDebtIssuanceCostsLineOfCreditArrangements	14100000	USD
CY2018Q4	us-gaap	Accumulated Amortization Of Debt Issuance Costs Line Of Credit Arrangements AccumulatedAmortizationOfDebtIssuanceCostsLineOfCreditArrangements	12500000	USD
CY2019Q4	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	4800000	USD
CY2018Q4	us-gaap	Debt Issuance Costs Line Of Credit Arrangements Net DebtIssuanceCostsLineOfCreditArrangementsNet	6400000	USD
CY2019Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	3000000.0	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	8200000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	25600000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	19000000.0	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	13900000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	9800000	USD
CY2019Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	0	USD
CY2018Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	100000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	202800000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	25200000	USD
CY2018Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	27800000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	275300000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	71300000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	21800000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	22500000	USD
CY2019Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	15200000	USD
CY2018Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	14000000.0	USD
CY2019Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	36500000	USD
CY2018Q4	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	30200000	USD
CY2019Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	8500000	USD
CY2018Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1300000	USD
CY2019Q4	gpk	Accrued Income And Other Taxes Current AccruedIncomeAndOtherTaxesCurrent	38400000	USD
CY2018Q4	gpk	Accrued Income And Other Taxes Current AccruedIncomeAndOtherTaxesCurrent	44400000	USD
CY2019Q4	gpk	Other Accrued Payables OtherAccruedPayables	31400000	USD
CY2018Q4	gpk	Other Accrued Payables OtherAccruedPayables	30300000	USD
CY2019Q4	gpk	Liabilities Payable To A Financial Institution Current LiabilitiesPayableToAFinancialInstitutionCurrent	0	USD
CY2018Q4	gpk	Liabilities Payable To A Financial Institution Current LiabilitiesPayableToAFinancialInstitutionCurrent	62600000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	54800000	USD
CY2019Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	32500000	USD
CY2018Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	35400000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	239100000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	240700000	USD
CY2019Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	5300000	USD
CY2018Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	5200000	USD
CY2019Q4	us-gaap	Multiemployer Plans Withdrawal Obligation MultiemployerPlansWithdrawalObligation	30800000	USD
CY2018Q4	us-gaap	Multiemployer Plans Withdrawal Obligation MultiemployerPlansWithdrawalObligation	32400000	USD
CY2019Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	9500000	USD
CY2018Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	9900000	USD
CY2019Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	3000000.0	USD
CY2018Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	2100000	USD
CY2019Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	28900000	USD
CY2018Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	31200000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	151500000	USD
CY2019Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	37800000	USD
CY2018Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	37000000.0	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	266800000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	117800000	USD
CY2019	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	107600000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	1158100000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	658800000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	72800000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	82000000.0	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6500000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	9500000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-300000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-800000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	7900000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	1000000.0	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	32800000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-8600000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	76200000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	27000000.0	USD
CY2019	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	12900000	USD
CY2018	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	26900000	USD
CY2017	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	3500000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-4200000	USD
CY2018	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	600000	USD
CY2017	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	2300000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	8400000	USD
CY2018	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-4100000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-1700000	USD
CY2019	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	5200000	USD
CY2018	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	11800000	USD
CY2017	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	6700000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	10600000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	8600000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	14200000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	173500000	USD
CY2018	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	1120800000	USD
CY2017	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	645300000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	126800000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	125000000.0	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	81800000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	25800000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	25800000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	15900000	USD
CY2019Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill	6500000	USD
CY2019Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	38500000	USD
CY2019Q3	us-gaap	Goodwill Goodwill	7500000	USD
CY2019	us-gaap	Business Combination Pro Forma Information Earnings Or Loss Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual	31200000	USD
CY2019	us-gaap	Business Combination Pro Forma Information Revenue Of Acquiree Since Acquisition Date Actual BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual	2000000.0	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	9300000	USD
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	11700000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4600000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	3800000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	36500000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	36500000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	50400000	USD
CY2018Q4	us-gaap	Debt Current DebtCurrent	52000000.0	USD
CY2019Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.021
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.084
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	134200000	USD
CY2018Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	122900000	USD
CY2019Q4	gpk	Long Term Debt Gross And Finance Lease Liability Including Current Maturities LongTermDebtGrossAndFinanceLeaseLiabilityIncludingCurrentMaturities	2863500000	USD
CY2018Q4	gpk	Long Term Debt Gross And Capital Lease Obligations Including Current Maturities LongTermDebtGrossAndCapitalLeaseObligationsIncludingCurrentMaturities	2956000000.0	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	41100000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	40300000	USD
CY2019Q4	gpk	Long Term Debt Gross And Finance Lease Liability LongTermDebtGrossAndFinanceLeaseLiability	2822400000	USD
CY2018Q4	gpk	Long Term Debt Gross And Capital Lease Obligations LongTermDebtGrossAndCapitalLeaseObligations	2915700000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	12500000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	10600000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2809900000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	2905100000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	36500000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	489400000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	128200000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1471200000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	300400000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	303600000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	2729300000	USD
CY2012Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1000000000.0	USD
CY2012Q1	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	1000000000.0	USD
CY2012	us-gaap	Proceeds From Issuance Of Medium Term Notes ProceedsFromIssuanceOfMediumTermNotes	300000000	USD
CY2013Q3	gpk	Lineof Credit Facility Increase Decreasein Maximum Borrowing Capacity LineofCreditFacilityIncreaseDecreaseinMaximumBorrowingCapacity	75000000	EUR
CY2013Q3	gpk	Lineof Credit Facility Increase Decreasein Maximum Borrowing Capacity LineofCreditFacilityIncreaseDecreaseinMaximumBorrowingCapacity	2500000000	JPY
CY2014Q2	gpk	Lineof Credit Facility Increase Decreasein Maximum Borrowing Capacity LineofCreditFacilityIncreaseDecreaseinMaximumBorrowingCapacity	63000000	EUR
CY2014Q2	gpk	Lineof Credit Facility Increase Decreasein Maximum Borrowing Capacity LineofCreditFacilityIncreaseDecreaseinMaximumBorrowingCapacity	86000000	USD
CY2014Q4	gpk	Lineof Credit Facility Increase Decreasein Maximum Borrowing Capacity LineofCreditFacilityIncreaseDecreaseinMaximumBorrowingCapacity	250000000	USD
CY2014Q4	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	169000000	USD
CY2018Q1	gpk	Lineof Credit Facility Increase Decreasein Maximum Borrowing Capacity LineofCreditFacilityIncreaseDecreaseinMaximumBorrowingCapacity	200000000	USD
CY2018Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1450000000	USD
CY2018Q1	us-gaap	Repayments Of Medium Term Notes RepaymentsOfMediumTermNotes	125000000	USD
CY2018Q1	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	800000000	USD
CY2018Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	660000000.0	USD
CY2018Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	660000000	USD
CY2019Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1687700000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	67400000	USD
CY2019Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	1602400000	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	17900000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	7600000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	7800000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	64800000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	12900000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	4400000	USD
CY2019	us-gaap	Lease Cost LeaseCost	97500000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	64700000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	7800000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	4200000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	73100000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	15500000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	202800000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	54800000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	151500000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	206300000	USD
CY2019Q4	gpk	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	142100000	USD
CY2019Q4	gpk	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	12200000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	129900000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	129600000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	134200000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P17Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0357
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0560
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	60800000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	12500000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	48400000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	12600000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	38600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	12200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	29000000.0	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	12400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	18100000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	12400000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	30700000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	158200000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	225600000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	220300000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	19300000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	86100000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	206300000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	134200000	USD
CY2019Q4	gpk	Share Based Compensation Arrangement By Share Based Payment Award Number Of Plans ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPlans	1	compensation_plan
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21700000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	13800000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8900000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlanNetPriorServiceCostsCreditArisingDuringPeriodNetOfTax	150200000	USD
CY2019Q4	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	39200000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	1043000000.0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	1048600000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	942900000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1.000
CY2019Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.000
CY2018Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1.000
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	1172400000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	1186500000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	100000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	100000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	2100000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	1800000	USD
CY2019	us-gaap	Multiemployer Plans Plan Contributions1 MultiemployerPlansPlanContributions1	600000	USD
CY2018	us-gaap	Multiemployer Plans Plan Contributions1 MultiemployerPlansPlanContributions1	3400000	USD
CY2019Q4	us-gaap	Multiemployer Plans Withdrawal Obligation MultiemployerPlansWithdrawalObligation	30800000	USD
CY2018Q4	us-gaap	Multiemployer Plans Withdrawal Obligation MultiemployerPlansWithdrawalObligation	32400000	USD
CY2019	gpk	Number Of Multiemployer Plans NumberOfMultiemployerPlans	1	plan
CY2019	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	200000	USD
CY2018	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	500000	USD
CY2017	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	500000	USD
CY2019	us-gaap	Multiemployer Plan Collective Bargaining Arrangement Percentage Of Contributions Required For Multiple Collective Bargaining Arrangements MultiemployerPlanCollectiveBargainingArrangementPercentageOfContributionsRequiredForMultipleCollectiveBargainingArrangements	0.05
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	57600000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	54600000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	37700000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	305400000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	298900000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	227500000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	48600000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	48600000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	25500000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	354000000.0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	347500000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	253000000.0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.034
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10100000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	13000000.0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-700000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	13500000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	15700000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	9200000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23600000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	28700000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8500000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	47700000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	31600000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-51000000.0	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	5000000.0	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-5600000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3000000.0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	52700000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	26000000.0	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-54000000.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	76300000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54700000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-45500000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	74300000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	73000000.0	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	88500000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	12300000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.035
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	11700000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8700000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.034
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	2800000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.008
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	3800000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.011
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	2700000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Other EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther	0.010
CY2019	gpk	Tax Benefit Expense Related To The Tax Cuts And Jobs Act TaxBenefitExpenseRelatedToTheTaxCutsAndJobsAct	0	USD
CY2019	gpk	Tax Benefit Expense Related To The Tax Cuts And Jobs Act Percent TaxBenefitExpenseRelatedToTheTaxCutsAndJobsActPercent	0
CY2018	gpk	Tax Benefit Expense Related To The Tax Cuts And Jobs Act TaxBenefitExpenseRelatedToTheTaxCutsAndJobsAct	-10900000	USD
CY2018	gpk	Tax Benefit Expense Related To The Tax Cuts And Jobs Act Percent TaxBenefitExpenseRelatedToTheTaxCutsAndJobsActPercent	-0.031
CY2017	gpk	Tax Benefit Expense Related To The Tax Cuts And Jobs Act TaxBenefitExpenseRelatedToTheTaxCutsAndJobsAct	-138000000.0	USD
CY2017	gpk	Tax Benefit Expense Related To The Tax Cuts And Jobs Act Percent TaxBenefitExpenseRelatedToTheTaxCutsAndJobsActPercent	-0.545
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CY2019	gpk	Income Tax Reconciliation Foreign Withholding Tax IncomeTaxReconciliationForeignWithholdingTax	700000	USD
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CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	3000000.0	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.012
CY2019	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	9500000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.027
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CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.005
CY2018	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	700000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.002
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CY2019	us-gaap	Income Tax Reconciliation Minority Interest Income Expense IncomeTaxReconciliationMinorityInterestIncomeExpense	13700000	USD
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CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
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CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.216
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54700000	USD
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.157
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CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	-10900000	USD
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CY2018	gpk	Foreign Tax Effect One Time Transition Tax The Tax Cuts And Jobs Act ForeignTaxEffectOneTimeTransitionTaxTheTaxCutsAndJobsAct	20500000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3800000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	37200000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	30800000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	10900000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7600000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	41100000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	36300000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	57200000	USD
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CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	2300000	USD
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CY2018Q4	gpk	Deferred Tax Liabilities Investment In Partnership DeferredTaxLiabilitiesInvestmentInPartnership	502100000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	566000000.0	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	533400000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	508800000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	454000000.0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	41100000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	36300000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	36300000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	51500000	USD
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CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	41100000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	36300000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	51500000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	31800000	USD
CY2019Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	37200000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15500000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	10500000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3200000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	800000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2400000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5200000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	400000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1000000.0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	20700000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	15500000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	17300000	USD
CY2019Q4	gpk	Unrecognized Tax Benefits Related To Indefinite Lived Deferred Tax Assets UnrecognizedTaxBenefitsRelatedToIndefiniteLivedDeferredTaxAssets	3400000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsIncreasesResultingFromForeignCurrencyTranslation	100000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	100000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	100000	USD
CY2019Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	1700000	USD
CY2019Q4	us-gaap	Deferred Tax Liability Not Recognized Amount Of Unrecognized Deferred Tax Liability Undistributed Earnings Of Foreign Subsidiaries DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries	0	USD
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CY2019Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	35000000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2300000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-1600000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3100000	USD
CY2019Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	2788600000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	2762500000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	2729300000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	2833100000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	1000000.0	USD
CY2018	us-gaap	Gain Loss On Fair Value Hedges Recognized In Earnings GainLossOnFairValueHedgesRecognizedInEarnings	-600000	USD
CY2018Q4	gpk	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Before Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesBeforeTax	-1900000	USD
CY2017Q4	gpk	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Before Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesBeforeTax	-300000	USD
CY2016Q4	gpk	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Before Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesBeforeTax	7500000	USD
CY2018	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-600000	USD
CY2017	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-2100000	USD
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CY2019Q4	gpk	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Before Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesBeforeTax	-10900000	USD
CY2018Q4	gpk	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Before Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesBeforeTax	-1900000	USD
CY2017Q4	gpk	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Before Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesBeforeTax	-300000	USD
CY2019	us-gaap	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimated Net Amount To Be Transferred DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred	7800000	USD
CY2019Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-16600000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-11300000	USD
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CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-110700000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-120500000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-365800000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-377900000	USD
CY2017	us-gaap	Payments To Acquire Assets Investing Activities PaymentsToAcquireAssetsInvestingActivities	260100000	USD
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CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	534100000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	327900000	USD
CY2019	us-gaap	Payments To Acquire Assets Investing Activities PaymentsToAcquireAssetsInvestingActivities	352900000	USD
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CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	447200000	USD
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CY2018	us-gaap	Revenues Revenues	6029400000	USD
CY2017	us-gaap	Revenues Revenues	4405600000	USD
CY2019Q4	us-gaap	Assets Assets	7289900000	USD
CY2018Q4	us-gaap	Assets Assets	7059200000	USD
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CY2019Q3	us-gaap	Revenues Revenues	1581600000	USD
CY2019Q4	us-gaap	Revenues Revenues	1519800000	USD
CY2019	us-gaap	Revenues Revenues	6160100000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	266100000	USD
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CY2019Q1	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	6200000	USD
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CY2019	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	37900000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	134000000.0	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	144400000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	122700000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	133000000.0	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	534100000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	78100000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	86100000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	70000000.0	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	43900000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	278100000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	57900000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	63800000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	52100000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	33000000.0	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	206800000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2018Q1	us-gaap	Revenues Revenues	1477400000	USD
CY2018Q2	us-gaap	Revenues Revenues	1510900000	USD
CY2018Q3	us-gaap	Revenues Revenues	1531800000	USD
CY2018Q4	us-gaap	Revenues Revenues	1509300000	USD
CY2018	us-gaap	Revenues Revenues	6029400000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	223900000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	237500000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	258300000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	232700000	USD
CY2018	us-gaap	Gross Profit GrossProfit	952400000	USD
CY2018Q1	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	26300000	USD
CY2018Q2	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	8600000	USD
CY2018Q3	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	-27400000	USD
CY2018Q4	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	7400000	USD
CY2018	gpk	Goodwill Impairment Restructuring And Other Special Charges GoodwillImpairmentRestructuringAndOtherSpecialCharges	14900000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	74000000.0	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	110300000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	166400000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	107500000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	458200000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	42700000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	66000000.0	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	122000000.0	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	63300000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	294000000.0	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	29900000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	49400000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	94300000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	47500000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	221100000	USD
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2019	us-gaap	Net Income Loss NetIncomeLoss	206800000	USD
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2018	us-gaap	Net Income Loss NetIncomeLoss	221100000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	300200000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	294100000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	309500000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	311100000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	700000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	600000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	800000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	294800000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	310100000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	311900000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.71
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.97
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2019	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-20300000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-36100000	USD
CY2019	gpk	Other Comprehensive Income Loss Net Of Tax Including Redeemable Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxIncludingRedeemableNoncontrollingInterest	15800000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	14900000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	USD
CY2019	us-gaap	Restructuring Reserve Period Increase Decrease RestructuringReservePeriodIncreaseDecrease	7700000	USD
CY2019	us-gaap	Payments For Restructuring PaymentsForRestructuring	600000	USD
CY2019Q4	us-gaap	Restructuring Reserve RestructuringReserve	7100000	USD

Files In Submission

Name	View Source	Status
0001408075-20-000009-index-headers.html	Edgar Link	pending
0001408075-20-000009-index.html	Edgar Link	pending
0001408075-20-000009.txt	Edgar Link	pending
0001408075-20-000009-xbrl.zip	Edgar Link	pending
exhibit1044-1231201910.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
gpk-20191231.htm	Edgar Link	pending
gpk-20191231.xsd	Edgar Link	pending
gpk-20191231_cal.xml	Edgar Link	unprocessable
gpk-20191231_def.xml	Edgar Link	unprocessable
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gpk-20191231_htm.xml	Edgar Link	completed
gpk-20191231_lab.xml	Edgar Link	unprocessable
gpk-20191231_pre.xml	Edgar Link	unprocessable
gpkexhibit211123120191.htm	Edgar Link	pending
gpkexhibit231-consento.htm	Edgar Link	pending
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$GPK
GRAPHIC PACKAGING HOLDING CO Stock $gpk

2019 Q4 Form 10-K Financial Statement

#000140807520000009 Filed on February 11, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GPK GRAPHIC PACKAGING HOLDING CO Stock $gpk

2019 Q4 Form 10-K Financial Statement

#000140807520000009 Filed on February 11, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GPK
GRAPHIC PACKAGING HOLDING CO Stock $gpk