Commitments And Contingent Liabilities (Narrative) (Details)
€ in Millions, $ in Millions |
3 Months Ended |
6 Months Ended |
12 Months Ended |
|
|
Dec. 31, 2017
USD ($)
|
Mar. 31, 2016
USD ($)
|
Jun. 30, 2017
USD ($)
|
Dec. 31, 2019
USD ($)
Producers
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2019
EUR (€)
|
| Loss Contingencies [Line Items] |
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| Accrual for environmental loss contingencies |
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$ 157.0
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| Accrual for environmental loss contingencies, gross |
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|
166.0
|
|
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| Value added tax receivable |
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|
6.0
|
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| Cass Lake Minnesota [Member] |
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| Loss Contingencies [Line Items] |
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| Accrual for environmental loss contingencies |
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46.0
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| Kalamazoo River Superfund Site [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, damages sought, value |
|
$ 37.0
|
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$ 19.0
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| Proposed consent decree, value of remediation payments |
|
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100.0
|
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| Proposed consent decree, value of labor performed |
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|
135.7
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| San Jacinto River Superfund Site [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, damages sought, value |
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$ 115.0
|
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| Harris County San Jacinto River Superfund Site [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, number of plaintiffs |
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600
|
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| Georgia-Pacific Consumer Products LP, Fort James Corporation and Georgia Pacific LLC Cost Recovery Action [Member] | Kalamazoo River Superfund Site [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, damages sought, value |
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$ 79.0
|
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| Loss contingency, damages awarded, value |
|
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$ 50.0
|
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| Loss Contingencies, share of damages |
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15.00%
|
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| Italian Competition Authority [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, number of defendants | Producers |
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30
|
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| Loss contingency accrual |
|
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|
$ 32.0
|
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€ 29
|
| Signature Industrial Services LLC et al. v. International Paper [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, damages awarded, value |
$ 137.0
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$ 125.0
|
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| Disputed invoices, value |
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1.0
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| Northern Impoundment [Member] | San Jacinto River Superfund Site [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, damages sought, value |
|
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105.0
|
|
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| Southern Impoundment [Member] [Member] | San Jacinto River Superfund Site [Member] |
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| Loss Contingencies [Line Items] |
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| Loss contingency, damages sought, value |
|
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$ 10.0
|
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