Long-Term Employee Benefits (Schedules of Net Periodic Benefit Cost) (Details) (Net Periodic Benefit (Credit) Cost [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 68	$ 66	$ 139	$ 134
Interest cost	271	295	544	592
Expected return on plan assets	(378)	(379)	(760)	(760)
Amortization of (gain) loss	239	220	480	439
Amortization of prior service cost (benefit)	3	3	6	7
Curtailment (gain) loss	0	0	1	0
Settlement loss	0	0	152	0
Net periodic benefit cost	203	205	562	412
Other Long-Term Employee Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	8	10	16	19
Interest cost	33	48	66	96
Amortization of (gain) loss	(2)	22	25	44
Amortization of prior service cost (benefit)	(46)	(30)	(94)	(60)
Curtailment (gain) loss	0	0	(154)	0
Settlement loss	0	0	1	0
Net periodic benefit cost	$ (7)	$ 50	$ (140)	$ 99