v2.4.0.8
Condensed Consolidating Financial Information (Details 2) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Assets            
Cash and cash equivalents $ 2,117 $ 1,987 $ 3,243 $ 3,357 $ 3,689 $ 5,134
Other current assets 3,643   3,529      
Total current assets 5,760   6,772      
Property and equipment, net 22,381   21,707      
Goodwill 2,987   2,987      
Other assets 939   1,080      
Total assets 32,067   32,546      
Liabilities and equity            
Debt due within one year 159   323      
Other current liabilities 3,238   3,231      
Total current liabilities 3,397   3,554      
Long-term debt 10,298   10,379      
Other long-term liabilities 1,593   1,928      
Total long-term liabilities 11,891   12,307      
Commitments and contingencies              
Redeemable noncontrolling interest 4          
Total equity 16,775   16,685 15,664   15,730
Total liabilities and equity 32,067   32,546      
Reportable Entity | Parent Guarantor
            
Assets            
Cash and cash equivalents 4   4 1   24
Other current assets 11   22      
Total current assets 15   26      
Investment in affiliates 17,605   16,914      
Total assets 17,620   16,940      
Liabilities and equity            
Other current liabilities 833   214      
Total current liabilities 833   214      
Other long-term liabilities 23   35      
Total long-term liabilities 23   35      
Commitments and contingencies              
Total equity 16,764   16,691      
Total liabilities and equity 17,620   16,940      
Reportable Entity | Subsidiary Issuer
            
Assets            
Cash and cash equivalents 793   1,617 1,692   3,155
Other current assets 1,315   1,302      
Total current assets 2,108   2,919      
Investment in affiliates 32,620   31,308      
Other assets 1,784   1,190      
Total assets 36,512   35,417      
Liabilities and equity            
Other current liabilities 635   526      
Total current liabilities 635   526      
Long-term debt 19,181   18,759      
Other long-term liabilities 151   232      
Total long-term liabilities 19,332   18,991      
Commitments and contingencies              
Total equity 16,545   15,900      
Total liabilities and equity 36,512   35,417      
Reportable Entity | Other Subsidiaries
            
Assets            
Cash and cash equivalents 1,320   1,622 1,664   1,955
Other current assets 4,722   4,607      
Total current assets 6,042   6,229      
Property and equipment, net 22,381   21,707      
Goodwill 2,987   2,987      
Other assets 20,151   19,954      
Total assets 51,561   50,877      
Liabilities and equity            
Debt due within one year 159   323      
Other current liabilities 4,175   4,893      
Total current liabilities 4,334   5,216      
Long-term debt 12,113   11,684      
Other long-term liabilities 1,419   1,661      
Total long-term liabilities 13,532   13,345      
Commitments and contingencies              
Redeemable noncontrolling interest 4          
Total equity 33,691   32,316      
Total liabilities and equity 51,561   50,877      
Consolidating adjustments
            
Assets            
Other current assets (2,405)   (2,402)      
Total current assets (2,405)   (2,402)      
Investment in affiliates (50,225)   (48,222)      
Other assets (20,996)   (20,064)      
Total assets (73,626)   (70,688)      
Liabilities and equity            
Other current liabilities (2,405)   (2,402)      
Total current liabilities (2,405)   (2,402)      
Long-term debt (20,996)   (20,064)      
Total long-term liabilities (20,996)   (20,064)      
Commitments and contingencies              
Total equity (50,225)   (48,222)      
Total liabilities and equity $ (73,626)   $ (70,688)