v2.4.0.8
Condensed Consolidating Financial Information (Details 3) (USD $)
In Millions, unless otherwise specified
 0 Months Ended 3 Months Ended 6 Months Ended
Jun. 18, 2014
Mar. 19, 2014
Jun. 19, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Condensed Consolidating Financial Information              
Cash flows from operating activities       $ 636 $ 416 $ 772 $ 522
Cash flows from investing activities              
Capital expenditures       (351) (352) (1,482) (840)
Proceeds from disposal of assets, net       10 3 101 4
Proceeds from disposal of assets in discontinued operations, net       22   36 63
Proceeds from repayment of notes receivable       98 3 101 11
Proceeds from sale of preference shares         185   185
Other, net           (15) 1
Net cash used in investing activities       (221) (161) (1,259) (576)
Cash flows from financing activities              
Repayments of debt       (6) (406) (243) (1,596)
Proceeds from restricted cash investments         78 107 206
Deposits to restricted cash investments         (45) (20) (104)
Distribution of qualifying additional paid-in capital (272) (202) (202) (272) (202) (474) (202)
Other, net           (9) (27)
Net cash used in financing activities       (285) (587) (639) (1,723)
Net increase (decrease) in cash and cash equivalents       130 (332) (1,126) (1,777)
Cash and cash equivalents at beginning of period       1,987 3,689 3,243 5,134
Cash and cash equivalents at end of period       2,117 3,357 2,117 3,357
Reportable Entity | Parent Guarantor
              
Condensed Consolidating Financial Information              
Cash flows from operating activities           261 (26)
Cash flows from financing activities              
Distribution of qualifying additional paid-in capital           (474) (202)
Financing activities with affiliates, net           217 207
Other, net           (4) (2)
Net cash used in financing activities           (261) 3
Net increase (decrease) in cash and cash equivalents             (23)
Cash and cash equivalents at beginning of period           4 24
Cash and cash equivalents at end of period       4 1 4 1
Reportable Entity | Subsidiary Issuer
              
Condensed Consolidating Financial Information              
Cash flows from operating activities           (546) (340)
Cash flows from investing activities              
Proceeds from sale of preference shares             185
Investing activities with affiliates, net           (151) (700)
Net cash used in investing activities           (151) (515)
Cash flows from financing activities              
Repayments of debt             (562)
Financing activities with affiliates, net           (122) (33)
Other, net           (5) (13)
Net cash used in financing activities           (127) (608)
Net increase (decrease) in cash and cash equivalents           (824) (1,463)
Cash and cash equivalents at beginning of period           1,617 3,155
Cash and cash equivalents at end of period       793 1,692 793 1,692
Reportable Entity | Other Subsidiaries
              
Condensed Consolidating Financial Information              
Cash flows from operating activities           1,057 888
Cash flows from investing activities              
Capital expenditures           (1,482) (840)
Proceeds from disposal of assets, net           101 4
Proceeds from disposal of assets in discontinued operations, net           36 63
Proceeds from repayment of notes receivable           101 11
Investing activities with affiliates, net           132 (204)
Other, net           (15) 1
Net cash used in investing activities           (1,127) (965)
Cash flows from financing activities              
Repayments of debt           (243) (1,034)
Proceeds from restricted cash investments           107 206
Deposits to restricted cash investments           (20) (104)
Financing activities with affiliates, net           (76) 730
Other, net             (12)
Net cash used in financing activities           (232) (214)
Net increase (decrease) in cash and cash equivalents           (302) (291)
Cash and cash equivalents at beginning of period           1,622 1,955
Cash and cash equivalents at end of period       1,320 1,664 1,320 1,664
Consolidating adjustments
              
Cash flows from investing activities              
Investing activities with affiliates, net           19 904
Net cash used in investing activities           19 904
Cash flows from financing activities              
Financing activities with affiliates, net           (19) (904)
Net cash used in financing activities           $ (19) $ (904)