Other Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Income [Abstract]
Gains/(Losses) on extinguishment of debt	$ 0	$ (3)	$ (1)	$ (12)
Gains/(Losses) on derivatives	(207)	(78)	(62)	(276)
Currency revaluation gains/(losses)	188	76	17	164
Interest and investment income	18	21	38	71
Insurance Fee Income	16	12	46	41
Other	66	57	166	219
Other income, net	$ 81	$ 85	$ 204	$ 207