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Consolidating Condensed Statements of Cash Flows (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | $ 900 | $ 735 | $ 901 | $ 720
Net cash provided by (used in) operating activities | 2,586 | 2,609 | 2,648 |
Investing activities |  |  |  |
Property and equipment additions | (250) | (231) | (197) |
Proceeds received on asset sales | 11 | 17 | 8 |
Net assets acquired (net of cash acquired) | (77) | (91) | (21) |
intercompany loan receipts |  | 0 | 0 |
Other, net | 81 | (44) | 5 |
Net cash used in investing activities exclusive of vehicle programs | (235) | (349) | (205) |
Vehicle programs: |  |  |  |
Investment In Vehicles | (12,887) | (12,589) | (11,538) |
Proceeds received on disposition of vehicles | 10,460 | 9,648 | 9,600 |
Repayments of Related Party Debt | (251) | (188) | (61) |
Proceeds from Related Party Debt | 161 | 52 | 0 |
Net Cash Used In Investing Activities Of Vehicle Programs | 2,517 | 3,077 | 1,999 |
Net Cash Provided by (Used in) Investing Activities | (2,752) | (3,426) | (2,204) |
Financing activities |  |  |  |
Proceeds from borrowings | 402 | 485 | 589 |
Principal payments on borrowings | (509) | (515) | (602) |
Proceeds from (Repayments of) Short-term Debt | (1) | (4) | (4) |
Debt financing fees | (7) | (15) | (9) |
Payments for Repurchase of Common Stock | (67) | (216) | (210) |
Intercompany loan borrowings |  | 0 | 0 |
Other, net | 0 | 3 | 1 |
Net cash used in financing activities exclusive of vehicle programs | (182) | (262) | (235) |
Vehicle programs: |  |  |  |
Proceeds from borrowings | 19,869 | 17,339 | 17,212 |
Principal payments on borrowings | (19,346) | (16,385) | (17,269) |
Debt financing fees | (23) | (25) | (16) |
Net cash provided by financing activities of vehicle programs | 500 | 929 | (73) |
Net cash provided by (used in) financing activities | 318 | 667 | (308) |
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 13 | (16) | 45 |
Net increase (decrease) in cash and cash equivalents, program and restricted cash | 165 | (166) | 181 |
Parent Company |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 1 | 1 | 4 | 3
Net cash provided by (used in) operating activities | 67 | 210 | 110 |
Investing activities |  |  |  |
Property and equipment additions | 0 | 0 | 0 |
Proceeds received on asset sales | 0 | 0 | 0 |
Net assets acquired (net of cash acquired) | 0 | 0 | 0 |
intercompany loan receipts |  | 0 | 0 |
Other, net | 0 | 0 | 100 |
Net cash used in investing activities exclusive of vehicle programs | 0 | 0 | 100 |
Vehicle programs: |  |  |  |
Investment In Vehicles | 0 | 0 | 0 |
Proceeds received on disposition of vehicles | 0 | 0 | 0 |
Repayments of Related Party Debt | 0 | 0 | 0 |
Proceeds from Related Party Debt | 0 | 0 |  |
Net Cash Used In Investing Activities Of Vehicle Programs | 0 | 0 | 0 |
Net Cash Provided by (Used in) Investing Activities | 0 | 0 | 100 |
Financing activities |  |  |  |
Proceeds from borrowings | 0 | 0 | 0 |
Principal payments on borrowings | 0 | 0 | 0 |
Proceeds from (Repayments of) Short-term Debt | 0 | 0 | 0 |
Debt financing fees | 0 | 0 | 0 |
Payments for Repurchase of Common Stock | (67) | (216) | (210) |
Intercompany loan borrowings |  | 0 | 0 |
Other, net | 0 | 3 | 1 |
Net cash used in financing activities exclusive of vehicle programs | (67) | (213) | (209) |
Vehicle programs: |  |  |  |
Proceeds from borrowings | 0 | 0 | 0 |
Principal payments on borrowings | 0 | 0 | 0 |
Debt financing fees | 0 | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 0 | 0 | 0 |
Net cash provided by (used in) financing activities | (67) | (213) | (209) |
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 | 0 |
Net increase (decrease) in cash and cash equivalents, program and restricted cash | 0 | (3) | 1 |
Subsidiary Issuers |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 12 | 12 | 14 | 12
Net cash provided by (used in) operating activities | 293 | 235 | (89) |
Investing activities |  |  |  |
Property and equipment additions | (79) | (64) | (49) |
Proceeds received on asset sales | 1 | 2 | 1 |
Net assets acquired (net of cash acquired) | (1) | (3) | (1) |
intercompany loan receipts |  | 0 | 0 |
Other, net | (75) | (8) | 110 |
Net cash used in investing activities exclusive of vehicle programs | (154) | (73) | 61 |
Vehicle programs: |  |  |  |
Investment In Vehicles | (118) | (2) | (1) |
Proceeds received on disposition of vehicles | 48 | 42 | 46 |
Repayments of Related Party Debt | 0 | 0 | 0 |
Proceeds from Related Party Debt | 0 | 0 |  |
Net Cash Used In Investing Activities Of Vehicle Programs | 70 | (40) | (45) |
Net Cash Provided by (Used in) Investing Activities | (224) | (33) | 106 |
Financing activities |  |  |  |
Proceeds from borrowings | 400 | 81 | 325 |
Principal payments on borrowings | (502) | (510) | (406) |
Proceeds from (Repayments of) Short-term Debt | 0 | 0 | 0 |
Debt financing fees | (7) | (9) | (5) |
Payments for Repurchase of Common Stock | 0 | 0 | 0 |
Intercompany loan borrowings |  | 404 | 264 |
Other, net | (61) | (167) | (192) |
Net cash used in financing activities exclusive of vehicle programs | (170) | (201) | (14) |
Vehicle programs: |  |  |  |
Proceeds from borrowings | 114 | 0 | 0 |
Principal payments on borrowings | (13) | (3) | (1) |
Debt financing fees | 0 | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 101 | (3) | (1) |
Net cash provided by (used in) financing activities | (69) | (204) | (15) |
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 | 0 |
Net increase (decrease) in cash and cash equivalents, program and restricted cash | 0 | (2) | 2 |
Guarantor Subsidiaries |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 1 | 0 | 0
Net cash provided by (used in) operating activities | 246 | 193 | 97 |
Investing activities |  |  |  |
Property and equipment additions | (100) | (88) | (81) |
Proceeds received on asset sales | 0 | 4 | 0 |
Net assets acquired (net of cash acquired) | (24) | (10) | (5) |
intercompany loan receipts |  | 0 | 0 |
Other, net | 12 | 0 | 110 |
Net cash used in investing activities exclusive of vehicle programs | (112) | (94) | 24 |
Vehicle programs: |  |  |  |
Investment In Vehicles | (22) | (1) | 0 |
Proceeds received on disposition of vehicles | 0 | 0 | 0 |
Repayments of Related Party Debt | 0 | 0 | 0 |
Proceeds from Related Party Debt | 0 | 0 |  |
Net Cash Used In Investing Activities Of Vehicle Programs | 22 | 1 | 0 |
Net Cash Provided by (Used in) Investing Activities | (134) | (95) | 24 |
Financing activities |  |  |  |
Proceeds from borrowings | 0 | 0 | 0 |
Principal payments on borrowings | (3) | (3) | (2) |
Proceeds from (Repayments of) Short-term Debt | 0 | 0 | 0 |
Debt financing fees | 0 | 0 | 0 |
Payments for Repurchase of Common Stock | 0 | 0 | 0 |
Intercompany loan borrowings |  | 0 | 0 |
Other, net | (98) | (85) | (110) |
Net cash used in financing activities exclusive of vehicle programs | (101) | (88) | (112) |
Vehicle programs: |  |  |  |
Proceeds from borrowings | 0 | 0 | 0 |
Principal payments on borrowings | (12) | (9) | (9) |
Debt financing fees | 0 | 0 | 0 |
Net cash provided by financing activities of vehicle programs | (12) | (9) | (9) |
Net cash provided by (used in) financing activities | (113) | (97) | (121) |
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 | 0 |
Net increase (decrease) in cash and cash equivalents, program and restricted cash | (1) | 1 | 0 |
Non-Guarantor Subsidiaries |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 887 | 721 | 883 | 705
Net cash provided by (used in) operating activities | 2,394 | 2,380 | 2,697 |
Investing activities |  |  |  |
Property and equipment additions | (71) | (79) | (67) |
Proceeds received on asset sales | 10 | 11 | 7 |
Net assets acquired (net of cash acquired) | (52) | (78) | (15) |
intercompany loan receipts |  | (404) | (264) |
Other, net | 69 | (36) | 5 |
Net cash used in investing activities exclusive of vehicle programs | (44) | (586) | (334) |
Vehicle programs: |  |  |  |
Investment In Vehicles | (12,747) | (12,586) | (11,537) |
Proceeds received on disposition of vehicles | 10,412 | 9,606 | 9,554 |
Repayments of Related Party Debt | (251) | (188) | (61) |
Proceeds from Related Party Debt | 161 | 52 |  |
Net Cash Used In Investing Activities Of Vehicle Programs | 2,425 | 3,116 | 2,044 |
Net Cash Provided by (Used in) Investing Activities | (2,469) | (3,702) | (2,378) |
Financing activities |  |  |  |
Proceeds from borrowings | 2 | 404 | 264 |
Principal payments on borrowings | (4) | (2) | (194) |
Proceeds from (Repayments of) Short-term Debt | (1) | (4) | (4) |
Debt financing fees | 0 | (6) | (4) |
Payments for Repurchase of Common Stock | 0 | 0 | 0 |
Intercompany loan borrowings |  | 0 | 0 |
Other, net | (180) | (157) | (185) |
Net cash used in financing activities exclusive of vehicle programs | (183) | 235 | (123) |
Vehicle programs: |  |  |  |
Proceeds from borrowings | 19,755 | 17,339 | 17,212 |
Principal payments on borrowings | (19,321) | (16,373) | (17,259) |
Debt financing fees | (23) | (25) | (16) |
Net cash provided by financing activities of vehicle programs | 411 | 941 | (63) |
Net cash provided by (used in) financing activities | 228 | 1,176 | (186) |
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 13 | (16) | 45 |
Net increase (decrease) in cash and cash equivalents, program and restricted cash | 166 | (162) | 178 |
Eliminations |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 | 0 | $ 0
Net cash provided by (used in) operating activities | (414) | (409) | (167) |
Investing activities |  |  |  |
Property and equipment additions | 0 | 0 | 0 |
Proceeds received on asset sales | 0 | 0 | 0 |
Net assets acquired (net of cash acquired) | 0 | 0 | 0 |
intercompany loan receipts |  | 404 | 264 |
Other, net | 75 | 0 | (320) |
Net cash used in investing activities exclusive of vehicle programs | 75 | 404 | (56) |
Vehicle programs: |  |  |  |
Investment In Vehicles | 0 | 0 | 0 |
Proceeds received on disposition of vehicles | 0 | 0 | 0 |
Repayments of Related Party Debt | 0 | 0 | 0 |
Proceeds from Related Party Debt | 0 | 0 |  |
Net Cash Used In Investing Activities Of Vehicle Programs | 0 | 0 | 0 |
Net Cash Provided by (Used in) Investing Activities | 75 | 404 | (56) |
Financing activities |  |  |  |
Proceeds from borrowings | 0 | 0 | 0 |
Principal payments on borrowings | 0 | 0 | 0 |
Proceeds from (Repayments of) Short-term Debt | 0 | 0 | 0 |
Debt financing fees | 0 | 0 | 0 |
Payments for Repurchase of Common Stock | 0 | 0 | 0 |
Intercompany loan borrowings |  | (404) | (264) |
Other, net | 339 | 409 | 487 |
Net cash used in financing activities exclusive of vehicle programs | 339 | 5 | 223 |
Vehicle programs: |  |  |  |
Proceeds from borrowings | 0 | 0 | 0 |
Principal payments on borrowings | 0 | 0 | 0 |
Debt financing fees | 0 | 0 | 0 |
Net cash provided by financing activities of vehicle programs | 0 | 0 | 0 |
Net cash provided by (used in) financing activities | 339 | 5 | 223 |
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 | 0 |
Net increase (decrease) in cash and cash equivalents, program and restricted cash | $ 0 | $ 0 | $ 0 |

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- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 + Details
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- Definition The cash outflow for loan and debt issuance costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash inflow from a long-term borrowing made from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from Advances from Affiliates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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