Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 1,526,950	$ 1,021,933
Marketable securities	153,380	140,118
Accounts receivable, net	219,039	262,382
Finance receivables, net	1,168,603	1,080,432
Restricted finance receivables held by variable interest entities, net	591,864	699,026
Inventories	418,006	326,446
Restricted cash held by variable interest entities	229,655	288,887
Deferred income taxes	132,331	146,411
Other current assets	102,378	100,991
Total current assets	4,542,206	4,066,626
Finance receivables, net	1,754,441	1,553,781
Restricted finance receivables held by variable interest entities, net	2,271,773	2,684,330
Property, plant and equipment, net	809,459	815,112
Goodwill	29,081	29,590
Deferred income taxes	202,439	213,989
Other long-term assets	64,765	67,312
Total assets	9,674,164	9,430,740
Current liabilities:
Accounts payable	255,713	225,346
Accrued liabilities	564,172	556,671
Short-term debt	838,486	480,472
Current portion of long-term debt	399,916
Current portion of long-term debt held by variable interest entities	640,331	751,293
Total current liabilities	2,698,618	2,013,782
Long-term debt	2,396,871	2,516,650
Long-term debt held by variable interest entities	1,447,015	2,003,941
Pension liability	302,483	282,085
Postretirement healthcare liability	268,582	254,762
Other long-term liabilities	140,339	152,654
Commitments and contingencies (Note 17)
Shareholders' equity:
Series A Junior participating preferred stock, none issued
Common stock, 339,107,230 and 338,260,456 shares issued in 2011 and 2010, respectively	3,391	3,382
Additional paid-in-capital	968,392	908,055
Retained earnings	6,824,180	6,336,077
Accumulated other comprehensive loss	(476,733)	(366,222)
Stockholders equity before treasury stock	7,319,230	6,881,292
Less: Treasury stock (108,566,699 and 102,739,587 shares in 2011 and 2010, respectively), at cost	(4,898,974)	(4,674,426)
Total shareholders' equity	2,420,256	2,206,866
Total liabilities and shareholders' equity	$ 9,674,164	$ 9,430,740