Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 144,000,000				$ 123,000,000				$ 144,000,000	$ 123,000,000	$ 160,000,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	0.2								0.2
Tax Benefit From An Affiliate Reorganization									13,000,000
Income Tax Reconciliation Tax Planning Initiatives									17,000,000
Extinguishment of Debt, Amount									405,000,000
U.S.									288,660,000	387,987,000	384,602,000
International									114,517,000	146,325,000	106,884,000
Income from continuing operations before income taxes	111,750,000	92,641,000	113,249,000	85,537,000	125,853,000	123,130,000	142,245,000	143,084,000	403,177,000	534,312,000	491,486,000
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
U.S. Federal: Current									78,315,000	151,984,000	(93,791,000)
U.S. Federal: Deferred									(19,754,000)	16,136,000	135,305,000
U.S. Federal: Total									58,561,000	168,120,000	41,514,000
U.S. State and Local: Current									5,359,000	(2,604,000)	27,385,000
U.S. State and Local: Deferred									(8,026,000)	(26,273,000)	(15,546,000)
U.S. State and Local: Total									(2,667,000)	(28,877,000)	11,839,000
International: Current									33,165,000	63,871,000	67,566,000
International: Deferred									(5,990,000)	(82,862,000)	(85,401,000)
International: Total									27,175,000	(18,991,000)	(17,835,000)
Total current									116,839,000	213,251,000	1,160,000
Total deferred									(33,770,000)	(92,999,000)	34,358,000
Total provision for income taxes	27,539,000	11,370,000	25,391,000	18,769,000	35,144,000	30,590,000	45,705,000	8,813,000	83,069,000	120,252,000	35,518,000
Effective tax rate									20.60361%	22.50595%	7.22666%
Tax benefit related to foreign tax										47,000,000	90,000,000
Tax Accrual For Repatriation Of Foreign Earnings										43,000,000
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Federal statutory provision									141,118,000	187,009,000	172,020,000
State and local income taxes									(1,733,000)	(2,071,000)	12,079,000
Income Tax Reconciliation, Non US Leveraged Lease Asset Sales									0	(30,367,000)	(31,423,000)
Tax Benefit From Sale Of Non U S Leverage Lease										32,000,000	34,000,000
Impact of foreign operations									(29,865,000)	21,100,000	(13,337,000)
Tax exempt income/reimbursement									(1,672,000)	(1,992,000)	(2,674,000)
Federal income tax credits/incentives									(10,282,000)	(8,918,000)	(10,741,000)
Unrealized stock compensation benefits									2,292,000	3,456,000	3,538,000
Income Tax Reconciliation Settlement With Taxing Authorities									(3,853,000)	(47,380,000)	(94,225,000)
Outside basis differences	(13,214,000)				0				(13,214,000)	0	0
Other, net									5,000,000
Provision for income taxes	27,539,000	11,370,000	25,391,000	18,769,000	35,144,000	30,590,000	45,705,000	8,813,000	83,069,000	120,252,000	35,518,000
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount									4,000,000
Deferred Tax Liabilities [Abstract]
Deferred tax liabilities: Depreciation	(54,023,000)				(65,205,000)				(54,023,000)	(65,205,000)
Deferred tax liabilities: Deferred profit (for tax purposes) on sale to finance subsidiary	(142,114,000)				(157,279,000)				(142,114,000)	(157,279,000)
Deferred tax liabilities: Lease revenue and related depreciation	(249,998,000)				(306,612,000)				(249,998,000)	(306,612,000)
Deferred tax liabilities: Amortizable intangibles	(79,852,000)				(104,156,000)				(79,852,000)	(104,156,000)
Deferred tax liabilities: Other	(73,077,000)				(35,157,000)				(73,077,000)	(35,157,000)
Deferred tax liabilities	(599,064,000)				(668,409,000)				(599,064,000)	(668,409,000)
Deferred Tax Assets, Net [Abstract]
Deferred tax assets: Nonpension postretirement benefits	99,628,000				119,002,000				99,628,000	119,002,000
Deferred tax assets: Pension	43,301,000				117,509,000				43,301,000	117,509,000
Deferred tax assets: Inventory and equipment capitalization	22,824,000				26,778,000				22,824,000	26,778,000
Deferred tax assets: Restructuring charges	26,837,000				20,793,000				26,837,000	20,793,000
Deferred tax assets: Long-term incentives	28,880,000				35,056,000				28,880,000	35,056,000
Deferred tax assets: Net operating loss and tax dredit carry forwards	143,839,000				152,617,000				143,839,000	152,617,000
Deferred Tax Assets, Tax Credit Carryforwards	48,617,000				41,518,000				48,617,000	41,518,000
Deferred tax assets: Tax uncertainties gross-up	35,298,000				28,492,000				35,298,000	28,492,000
Deferred tax assets: Other	147,709,000				89,406,000				147,709,000	89,406,000
Deferred tax assets: Valuation allowance	(122,780,000)				(142,176,000)				(122,780,000)	(142,176,000)
Deferred tax assets	474,153,000				488,995,000				474,153,000	488,995,000
Total deferred taxes, net	(124,911,000)				(179,414,000)				(124,911,000)	(179,414,000)
Operating Loss Carryforwards	292,000,000								292,000,000
Operating Loss Carryforwards Not Subject to Expiration	260,000,000								260,000,000
Tax Credit Carryforward, Expiration Date									Jan. 01, 2015
Cumulative Undistributed Earnings of Foreign Subsidiaries	700,000,000								700,000,000
Withholding Taxes On Undistributed Earnings of Foreign Subsidiaries	3,000,000								3,000,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year				146,905,000				198,635,000	146,905,000	198,635,000	531,790,000
Increases from prior period positions									15,777,000	11,811,000	67,065,000
Decreases from prior period positions									(6,908,000)	(17,985,000)	(140,107,000)
Increases from current period positions									23,549,000	28,255,000	28,686,000
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities									(482,000)	(1,948,000)	(18,204,000)
Reductions from lapse of applicable statute of limitations									(10,440,000)	(71,863,000)	(270,595,000)
Balance at end of year	168,401,000				146,905,000				168,401,000	146,905,000	198,635,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense									27,000,000	(28,000,000)	(83,000,000)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	37,000,000				11,000,000				37,000,000	11,000,000
Loss Contingency, Range of Possible Loss, Portion Not Accrued	100,000,000								100,000,000
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount									$ 278,000	$ (585,000)	$ 281,000