Long-Term Employee Benefits (Schedules of Net Periodic Benefit Cost of Pension Benefits) (Details) (Pension Plans, Defined Benefit [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Total recognized in net periodic benefit cost and other comprehensive income	$ 4,087	$ 668	$ 640
Net Periodic Benefit (Credit) Cost [Member]
Service cost	249	207	192
Interest cost	1,253	1,262	1,270
Expected return on plan assets	(1,475)	(1,435)	(1,603)
Amortization of loss	613	507	278
Amortization of prior service cost	16	16	18
Net periodic benefit (credit) cost	656	557	155
Net periodic benefit (credit) cost	656	557	155
Changes in Plan Assets and Benefit Obligations Recognized [Member]
Net loss (gain)	4,058	634	781
Amortization of loss	(613)	(507)	(278)
Prior service cost	2	0	0
Amortization of prior service benefit	(16)	(16)	(18)
Total recognized in other comprehensive income	$ 3,431	$ 111	$ 485