Long-Term Employee Benefits (Schedules of Net Periodic Benefit Cost) (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Pension Plans [Member]
Service cost	$ 61	$ 50	$ 120	$ 101
Interest cost	314	314	624	630
Expected return on plan assets	(369)	(356)	(734)	(716)
Amortization of unrecognized loss	153	127	306	253
Amortization of prior service cost (benefit)	4	4	8	8
Net periodic benefit cost	163	139	324	276
Other Long-Term Employee Benefit Plans Defined Benefit [Member]
Service cost	9	7	17	14
Interest cost	53	59	106	119
Amortization of unrecognized loss	15	14	30	29
Amortization of prior service cost (benefit)	(31)	(26)	(61)	(53)
Net periodic benefit cost	$ 46	$ 54	$ 92	$ 109