Long-Term Employee Benefits (Schedule of Information for Pension Plans with Projected Benefit Obligation in Excess of Plan Assets) (Details) (Pension Plans, Defined Benefit [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 26,158	$ 29,043
Accumulated benefit obligation	24,574	27,130
Fair value of plan assets	$ 20,472	$ 19,258