Income Taxes (Deferred Tax Liabilities and Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax liabilities:
Depreciation	$ (60,282)	$ (33,057)
Deferred profit (for tax purposes) on sale to finance subsidiary	(114,633)	(142,114)
Lease revenue and related depreciation	(205,683)	(249,998)
Amortizable intangibles	(74,034)	(79,852)
Other	(64,900)us-gaap_DeferredTaxLiabilitiesOther	(73,077)us-gaap_DeferredTaxLiabilitiesOther
Deferred tax liabilities	(519,532)us-gaap_DeferredTaxLiabilities	(578,098)us-gaap_DeferredTaxLiabilities
Deferred tax assets:
Nonpension postretirement benefits	82,181	99,628
Pension	141,492	43,301
Inventory and equipment capitalization	18,502us-gaap_DeferredTaxAssetsInventory	22,824us-gaap_DeferredTaxAssetsInventory
Restructuring charges	35,432	26,837
Long-term incentives	25,718	28,880
Net operating loss	102,686	143,839
Tax credit carry forwards	47,493	48,617
Tax uncertainties gross-up	22,851	35,298
Other	125,512us-gaap_DeferredTaxAssetsOther	147,709us-gaap_DeferredTaxAssetsOther
Valuation allowance	(116,935)	(122,780)
Deferred tax assets	484,932us-gaap_DeferredTaxAssetsNet	474,153us-gaap_DeferredTaxAssetsNet
Total deferred taxes, net	$ (34,600)us-gaap_DeferredTaxAssetsLiabilitiesNet	$ (103,945)us-gaap_DeferredTaxAssetsLiabilitiesNet

The sum of the tax effects as of the balance sheet date of the amount of excesses of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset and the tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

No definition available.