Fair Value Measurements (Details 1) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	$ 102	$ 84
Properties, plant and equipment, net (held for sale)	69	16
Investments and advances	38	0
Total Non-Recurring Assets at Fair Value	209	100
Properties, plant and equipment, net (held and used), Before-Tax Loss	278	213
Properties, plant and equipment, net (held for sale), Before-Tax Loss	104	17
Investments and advances, Before-Tax Loss	228	15
Assets fair value before tax loss	610	245
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	0	0
Properties, plant and equipment, net (held for sale)	0	0
Investments and advances	0	0
Total Non-Recurring Assets at Fair Value	0	0
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	0	0
Properties, plant and equipment, net (held for sale)	69	0
Investments and advances	35	0
Total Non-Recurring Assets at Fair Value	104	0
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)	102	84
Properties, plant and equipment, net (held for sale)	0	16
Investments and advances	3	0
Total Non-Recurring Assets at Fair Value	$ 105	$ 100