Benefit Plans (Components Of Net Pension Cost) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
U.S. Pension Plans [Member]
Service cost	$ 33	$ 35	$ 73	$ 72
Interest cost	91	91	182	183
Expected return on plan assets	(124)	(124)	(248)	(245)
Net loss from experience differences	56	42	112	85
Prior service cost	1	2	3	3
Other expenses	19	14	36	61
Net periodic benefit cost	76	60	158	159
Non-U.S. Pension Plans [Member]
Service cost	46	41	90	77
Interest cost	118	99	231	185
Expected return on plan assets	(138)	(110)	(270)	(207)
Net loss from experience differences	26	18	50	36
Prior service cost	1	1	1	3
Other expenses
Net periodic benefit cost	$ 53	$ 49	$ 102	$ 94