Long-Term Debt And Borrowing Arrangements (Interest Expense) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2010 Call Option [Member] Convertible Notes [Member]	Sep. 30, 2011 Call Option [Member] Convertible Notes [Member]	Sep. 30, 2010 Call Option [Member] Convertible Notes [Member]	Sep. 30, 2011 Non Securitized Debt [Member]	Sep. 30, 2010 Non Securitized Debt [Member]	Sep. 30, 2011 Non Securitized Debt [Member]	Sep. 30, 2010 Non Securitized Debt [Member]	Mar. 31, 2010 Secured Revolving Foreign Credit Facility [Member]	Sep. 30, 2011 Consumer Finance [Member]	Sep. 30, 2010 Consumer Finance [Member]
Interest expense								$ 37	$ 38	$ 112	$ 110
Loss on repurchase of convertible notes					11	12	11					16
Interest paid			95	80									57	68
Interest capitalized	$ 3	$ 2	$ 9	$ 4