Guarantor And Non-Guarantor Consolidating Condensed Financial Statements (Consolidating Condensed Statements Of Cash Flows) (Detail) (USD $) | 3 Months Ended |
In Millions, unless otherwise specified | Mar. 31, 2014 | Mar. 31, 2013 |
Supplemental Guarantor Financial Information [Line Items] | ' | ' |
Net cash provided by (used in) operating activities | $390 | $300 |
Property and equipment additions | -36 | -21 |
Proceeds received on asset sales | 3 | 4 |
Payments to Acquire Restricted Investments | -124 | -476 |
Proceeds from (Repayments of) Related Party Debt | ' | 0 |
Other, net | -7 | 26 |
Net cash used in investing activities exclusive of vehicle programs | -164 | -467 |
Decrease (increase) in program cash | 12 | -24 |
Investment in vehicles | -3,275 | -3,111 |
Proceeds received on disposition of vehicles | 2,470 | 2,394 |
Net cash used in investing activities of vehicle programs | -793 | -741 |
Net cash used in investing activities | -957 | -1,208 |
Proceeds from long-term borrowings | 295 | 1,225 |
Principal payments on borrowings | -5 | -788 |
Net change in short-term borrowings | 11 | -31 |
Purchase of warrants | 0 | -28 |
Proceeds from sale of call options | 0 | 37 |
Repurchases of common stock | -67 | 0 |
Net intercompany transactions | ' | 0 |
Debt financing fees | -5 | -10 |
Other, net | -1 | 2 |
Net cash provided by financing activities exclusive of vehicle programs | 228 | 407 |
Proceeds from borrowings | 3,775 | 3,762 |
Principal payments on borrowings | -3,280 | -3,279 |
Debt financing fees | -7 | -17 |
Net cash provided by financing activities of vehicle programs | 488 | 466 |
Net cash provided by financing activities | 716 | 873 |
Effect of changes in exchange rates on cash and cash equivalents | -1 | -2 |
Net increase (decrease) in cash and cash equivalents | 148 | -37 |
Cash and cash equivalents, beginning of period | 693 | 606 |
Cash and cash equivalents, end of period | 841 | 569 |
Parent [Member] | ' | ' |
Supplemental Guarantor Financial Information [Line Items] | ' | ' |
Net cash provided by (used in) operating activities | 2 | -17 |
Property and equipment additions | 0 | 0 |
Proceeds received on asset sales | 0 | 0 |
Payments to Acquire Restricted Investments | 0 | 0 |
Proceeds from (Repayments of) Related Party Debt | ' | 0 |
Other, net | 57 | 96 |
Net cash used in investing activities exclusive of vehicle programs | 57 | 96 |
Decrease (increase) in program cash | 0 | 0 |
Investment in vehicles | 0 | 0 |
Proceeds received on disposition of vehicles | 0 | 0 |
Net cash used in investing activities of vehicle programs | 0 | 0 |
Net cash used in investing activities | 57 | 96 |
Proceeds from long-term borrowings | 0 | 0 |
Principal payments on borrowings | 0 | -89 |
Net change in short-term borrowings | 0 | 0 |
Purchase of warrants | ' | -28 |
Proceeds from sale of call options | ' | 37 |
Repurchases of common stock | -67 | ' |
Net intercompany transactions | ' | 0 |
Debt financing fees | 0 | 0 |
Other, net | -1 | 2 |
Net cash provided by financing activities exclusive of vehicle programs | -68 | -78 |
Proceeds from borrowings | 0 | 0 |
Principal payments on borrowings | 0 | 0 |
Debt financing fees | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 0 | 0 |
Net cash provided by financing activities | -68 | -78 |
Effect of changes in exchange rates on cash and cash equivalents | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | -9 | 1 |
Cash and cash equivalents, beginning of period | 14 | 5 |
Cash and cash equivalents, end of period | 5 | 6 |
Subsidiary Issuers [Member] | ' | ' |
Supplemental Guarantor Financial Information [Line Items] | ' | ' |
Net cash provided by (used in) operating activities | 284 | -59 |
Property and equipment additions | -3 | -5 |
Proceeds received on asset sales | 2 | 2 |
Payments to Acquire Restricted Investments | 0 | -513 |
Proceeds from (Repayments of) Related Party Debt | ' | 70 |
Other, net | -7 | -1 |
Net cash used in investing activities exclusive of vehicle programs | -8 | -447 |
Decrease (increase) in program cash | 0 | 0 |
Investment in vehicles | -1 | -1 |
Proceeds received on disposition of vehicles | 3 | 1 |
Net cash used in investing activities of vehicle programs | 2 | 0 |
Net cash used in investing activities | -6 | -447 |
Proceeds from long-term borrowings | 0 | 1,225 |
Principal payments on borrowings | -4 | -698 |
Net change in short-term borrowings | 0 | 0 |
Purchase of warrants | ' | 0 |
Proceeds from sale of call options | ' | 0 |
Repurchases of common stock | 0 | ' |
Net intercompany transactions | ' | 0 |
Debt financing fees | 0 | -10 |
Other, net | -57 | -96 |
Net cash provided by financing activities exclusive of vehicle programs | -61 | 421 |
Proceeds from borrowings | 0 | 0 |
Principal payments on borrowings | 0 | 0 |
Debt financing fees | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 0 | 0 |
Net cash provided by financing activities | -61 | 421 |
Effect of changes in exchange rates on cash and cash equivalents | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | 217 | -85 |
Cash and cash equivalents, beginning of period | 242 | 102 |
Cash and cash equivalents, end of period | 459 | 17 |
Guarantor Subsidiaries [Member] | ' | ' |
Supplemental Guarantor Financial Information [Line Items] | ' | ' |
Net cash provided by (used in) operating activities | 14 | -25 |
Property and equipment additions | -17 | -10 |
Proceeds received on asset sales | 0 | 0 |
Payments to Acquire Restricted Investments | 0 | 16 |
Proceeds from (Repayments of) Related Party Debt | ' | 0 |
Other, net | 0 | 28 |
Net cash used in investing activities exclusive of vehicle programs | -17 | 34 |
Decrease (increase) in program cash | 0 | 0 |
Investment in vehicles | -8 | 0 |
Proceeds received on disposition of vehicles | 0 | 0 |
Net cash used in investing activities of vehicle programs | -8 | 0 |
Net cash used in investing activities | -25 | 34 |
Proceeds from long-term borrowings | 0 | 0 |
Principal payments on borrowings | -1 | -1 |
Net change in short-term borrowings | 0 | 0 |
Purchase of warrants | ' | 0 |
Proceeds from sale of call options | ' | 0 |
Repurchases of common stock | 0 | ' |
Net intercompany transactions | ' | 0 |
Debt financing fees | 0 | 0 |
Other, net | 0 | 0 |
Net cash provided by financing activities exclusive of vehicle programs | -1 | -1 |
Proceeds from borrowings | 0 | 0 |
Principal payments on borrowings | 0 | 0 |
Debt financing fees | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 0 | 0 |
Net cash provided by financing activities | -1 | -1 |
Effect of changes in exchange rates on cash and cash equivalents | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | -12 | 8 |
Cash and cash equivalents, beginning of period | 12 | 0 |
Cash and cash equivalents, end of period | 0 | 8 |
Non-Guarantor Subsidiaries [Member] | ' | ' |
Supplemental Guarantor Financial Information [Line Items] | ' | ' |
Net cash provided by (used in) operating activities | 90 | 401 |
Property and equipment additions | -16 | -6 |
Proceeds received on asset sales | 1 | 2 |
Payments to Acquire Restricted Investments | -124 | 21 |
Proceeds from (Repayments of) Related Party Debt | ' | 0 |
Other, net | 0 | -1 |
Net cash used in investing activities exclusive of vehicle programs | -139 | 16 |
Decrease (increase) in program cash | 12 | -24 |
Investment in vehicles | -3,266 | -3,110 |
Proceeds received on disposition of vehicles | 2,467 | 2,393 |
Net cash used in investing activities of vehicle programs | -787 | -741 |
Net cash used in investing activities | -926 | -725 |
Proceeds from long-term borrowings | 295 | 0 |
Principal payments on borrowings | 0 | 0 |
Net change in short-term borrowings | 11 | -31 |
Purchase of warrants | ' | 0 |
Proceeds from sale of call options | ' | 0 |
Repurchases of common stock | 0 | ' |
Net intercompany transactions | ' | -70 |
Debt financing fees | -5 | 0 |
Other, net | 0 | 0 |
Net cash provided by financing activities exclusive of vehicle programs | 301 | -101 |
Proceeds from borrowings | 3,775 | 3,762 |
Principal payments on borrowings | -3,280 | -3,279 |
Debt financing fees | -7 | -17 |
Net cash provided by financing activities of vehicle programs | 488 | 466 |
Net cash provided by financing activities | 789 | 365 |
Effect of changes in exchange rates on cash and cash equivalents | -1 | -2 |
Net increase (decrease) in cash and cash equivalents | -48 | 39 |
Cash and cash equivalents, beginning of period | 425 | 499 |
Cash and cash equivalents, end of period | 377 | 538 |
Eliminations [Member] | ' | ' |
Supplemental Guarantor Financial Information [Line Items] | ' | ' |
Net cash provided by (used in) operating activities | 0 | 0 |
Property and equipment additions | 0 | 0 |
Proceeds received on asset sales | 0 | 0 |
Payments to Acquire Restricted Investments | 0 | 0 |
Proceeds from (Repayments of) Related Party Debt | ' | -70 |
Other, net | -57 | -96 |
Net cash used in investing activities exclusive of vehicle programs | -57 | -166 |
Decrease (increase) in program cash | 0 | 0 |
Investment in vehicles | 0 | 0 |
Proceeds received on disposition of vehicles | 0 | 0 |
Net cash used in investing activities of vehicle programs | 0 | 0 |
Net cash used in investing activities | -57 | -166 |
Proceeds from long-term borrowings | 0 | 0 |
Principal payments on borrowings | 0 | 0 |
Net change in short-term borrowings | 0 | 0 |
Purchase of warrants | ' | 0 |
Proceeds from sale of call options | ' | 0 |
Repurchases of common stock | 0 | ' |
Net intercompany transactions | ' | 70 |
Debt financing fees | 0 | 0 |
Other, net | 57 | 96 |
Net cash provided by financing activities exclusive of vehicle programs | 57 | 166 |
Proceeds from borrowings | 0 | 0 |
Principal payments on borrowings | 0 | 0 |
Debt financing fees | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 0 | 0 |
Net cash provided by financing activities | 57 | 166 |
Effect of changes in exchange rates on cash and cash equivalents | 0 | 0 |
Net increase (decrease) in cash and cash equivalents | 0 | 0 |
Cash and cash equivalents, beginning of period | 0 | 0 |
Cash and cash equivalents, end of period | $0 | $0 |