Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Cash and cash equivalents ($136 and $242 attributable to VIEs)	$ 442	$ 941
Allowance for Doubtful Accounts Receivable, Current	7	5
Restricted cash, current ($122 and $100 attributable to VIEs)	191	203
Property, plant and equipment, net ($4,542 and $4,191 attributable to VIEs)	12,844	12,995
Restricted cash, net of current portion ($66 and $68 attributable to VIEs)	66	69
Other assets ($196 and $195 attributable to VIEs)	430	441
Debt, current portion ($134 and $140 attributable to VIEs)	189	204
Debt, net of current portion ($3,303 and $2,923 attributable to VIEs)	11,260	10,908
Preferred Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	1,400,000,000	1,400,000,000
Common Stock, Shares, Issued	500,563,630	497,841,056
Common Stock, Shares, Outstanding	417,133,226	429,038,988
Treasury Stock, Shares	83,430,404	68,802,068
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents ($136 and $242 attributable to VIEs)	136	242
Restricted cash, current ($122 and $100 attributable to VIEs)	122	100
Property, plant and equipment, net ($4,542 and $4,191 attributable to VIEs)	4,542	4,191
Restricted cash, net of current portion ($66 and $68 attributable to VIEs)	66	68
Other assets ($196 and $195 attributable to VIEs)	196	195
Debt, current portion ($134 and $140 attributable to VIEs)	134	140
Debt, net of current portion ($3,303 and $2,923 attributable to VIEs)	$ 3,303	$ 2,923