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Basis of Presentation Basis of Presentation (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Basis of Presentation [Abstract] |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | $ 1,564,000,000 | $ 615,000,000 | $ 1,564,000,000 | $ 615,000,000 | $ 686,000,000 |
Program cash | 94,000,000 | 89,000,000 | 94,000,000 | 89,000,000 | 211,000,000 |
Restricted Cash and Cash Equivalents | 2,000,000 | 4,000,000 | 2,000,000 | 4,000,000 |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 1,660,000,000 | 708,000,000 | 1,660,000,000 | 708,000,000 | 900,000,000 | $ 735,000,000
Net Unrealized Gain Or Loss Of Foreign Currency Transactions On Intercompany Loan Hedges |  |  | 5,000,000 | 3,000,000 |  |
Proceeds from Sale of Equity Method Investments |  |  |  | 64,000,000 |  |
Gain (Loss) on Sale of Equity Investments |  |  |  | 44,000,000 |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | 59,000,000 |  | 59,000,000 |  | 56,000,000 |
Equity Securities without Readily Determinable Fair Value, Amount |  |  |  |  | 8,000,000 |
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount | 12,000,000 |  | 12,000,000 |  |  |
Other related Revenue | 30,000,000 | 40,000,000 | 84,000,000 | 103,000,000 |  |
Adjustments related to New Accounting Pronouncements [Line Items] |  |  |  |  |  |
Long-term Debt, Gross | 1,200,000,000 |  | 1,200,000,000 |  |  |
Revenues | 1,534,000,000 | 2,753,000,000 | 4,047,000,000 | 7,010,000,000 |  |
Operating Lease, Right-of-Use Asset | 2,642,000,000 |  | 2,642,000,000 |  | 2,596,000,000 |
Line of Credit Facility, Current Borrowing Capacity | 1,800,000,000 |  | 1,800,000,000 |  |  |
Cash and cash equivalents | 1,564,000,000 | 615,000,000 | 1,564,000,000 | 615,000,000 | 686,000,000 |
Cash and Cash Equivalents [Abstract] |  |  |  |  |  |
Adjusted EBITDA | 220,000,000 | 471,000,000 | (249,000,000) | 645,000,000 |  |
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions | 3,000,000 | 5,000,000 | 4,000,000 | 9,000,000 |  |
Derivatives not designated as hedging instruments | (51,000,000) | 37,000,000 | (61,000,000) | 36,000,000 |  |
Property leases [Member] |  |  |  |  |  |
Adjustments related to New Accounting Pronouncements [Line Items] |  |  |  |  |  |
Operating Lease, Right-of-Use Asset | 2,642,000,000 |  | 2,642,000,000 |  | $ 2,596,000,000 |
Americas [Member] |  |  |  |  |  |
Adjustments related to New Accounting Pronouncements [Line Items] |  |  |  |  |  |
Revenues | 1,114,000,000 | 1,868,000,000 | 2,936,000,000 | 4,822,000,000 |  |
EMEA [Member] |  |  |  |  |  |
Adjustments related to New Accounting Pronouncements [Line Items] |  |  |  |  |  |
Revenues | 363,000,000 | 742,000,000 | 879,000,000 | 1,747,000,000 |  |
Asia and Australasia [Member] |  |  |  |  |  |
Adjustments related to New Accounting Pronouncements [Line Items] |  |  |  |  |  |
Revenues | $ 57,000,000 | $ 143,000,000 | $ 232,000,000 | $ 441,000,000 |  |

X
- Definition Adjusted earnings before non-vehicle related depreciation and amortization, any impairment charge, restructuring and other related charges, early extinguishment of debt costs, non-vehicle related interest, transaction-related costs, net charges for an unprecedented personal-injury legal matters, non-operational charges related to shareholder activist activity and income taxes. + References No definition available. + Details
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- Definition Net unrealized gain or loss on foreign-currency transactions of intercompany loan hedges. + References No definition available. + Details
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- Definition The carrying amounts of cash and cash equivalent items related to vehicle programs which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. + References No definition available. + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: 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=121586364&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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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=121586364&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=121586364&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=121583591&loc=SL98516268-108586 + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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