Long-Term Employee Benefits (Schedules of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost			$ 445	$ 305
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 50	$ 61	179	181
Interest cost	270	290	815	875
Expected return on plan assets	(375)	(405)	(1,180)	(1,211)
Amortization of loss	172	151	591	450
Amortization of prior service (benefit) cost	(3)	1	(6)	2
Curtailment (gain) loss	(7)	0	(7)	4
Settlement loss	44	2	53	4
Net periodic benefit cost	151	100	445	305
Net periodic benefit cost, discontinued operations	(7)	9	(5)	31
Net periodic benefit cost, continuing operations	158	91	450	274
Other Long-Term Employee Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	4	12	13
Interest cost	28	30	83	91
Amortization of loss	20	15	58	43
Amortization of prior service (benefit) cost	(39)	(54)	(143)	(160)
Curtailment (gain) loss	(274)	0	(274)	0
Net periodic benefit cost	(262)	(5)	(264)	(13)
Net periodic benefit cost, discontinued operations	(274)	1	(272)	3
Net periodic benefit cost, continuing operations	$ 12	$ (6)	$ 8	$ (16)