| **Debt - Schedule of Debt Instruments (Details) - USD ($)**                                                                                                | 12 Months Ended |                 |        |              |             |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|-----------------|--------|--------------|-------------|
||
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 101,000,000   |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 4,904,000,000   |            |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations                                                                                                               | 3,997,000,000   | $ 4,147,000,000 |   |         |        |   |   |
| Payments to subsidiary to meet convenant requirement                                                                                                       | 0               | 0               | $ 0    |         |        |   |   |
| Line of Credit [Member]                                                                                                                                    |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      |            |            |   | $ 10,000,000 |        |   |   |
| Convertible Subordinated Debt [Member] | Four Point Five Zero Senior Subordinated Convertible Notes [Member]                                               |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      |            |            |   |         |        | $ 1,000,000 |   |
| Convertible Subordinated Debt [Member] | Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member]                                     |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      |            |            |   |         | $ 1,000,000 |   |   |
| Asset-Based Credit Facility [Member]                                                                                                                       |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Line of Credit                                                                                                                                   | 0               | 0               |   |         |        |   |   |
| Financial Services Operations                                                                                                                              |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | 9,000,000       |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 1,808,000,000   |            |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations, Including Current Maturities                                                                                 | 1,808,000,000   | 2,093,000,000   |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations, Current                                                                                                      | 836,000,000     | 1,005,000,000   |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations                                                                                                               | 972,000,000     | 1,088,000,000   |   |         |        |   |   |
| Financial Services Operations | Secured Debt [Member]                                                                                                      |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 753,000,000     | 864,000,000     |   |         |        |   |   |
| Financial Services Operations | Line of Credit [Member]                                                                                                    |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 861,000,000     | 1,062,000,000   |   |         |        |   |   |
| Financial Services Operations | Commercial Paper [Member]                                                                                                  |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 96,000,000      | 86,000,000      |   |         |        |   |   |
| Financial Services Operations | Borrowings Secured By Operating and Finance Leases [Member]                                                                |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 98,000,000      | 81,000,000      |   |         |        |   |   |
| Manufacturing Operations [Member]                                                                                                                          |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | 92,000,000      |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 3,096,000,000   |            |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations, Including Current Maturities                                                                                 | 3,096,000,000   | 3,162,000,000   |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations, Current                                                                                                      | 71,000,000      | 103,000,000     |   |         |        |   |   |
| Long-term Debt and Capital Lease Obligations                                                                                                               | 3,025,000,000   | 3,059,000,000   |   |         |        |   |   |
| Manufacturing Operations [Member] | Line of Credit [Member]                                                                                                |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | 14,000,000      | 17,000,000      |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 1,009,000,000   | 1,014,000,000   |   |         |        |   |   |
| Manufacturing Operations [Member] | Notes Payable to Banks [Member] | Eight Point Two Five Percent Senior Notes [Member]                                   |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 15,000,000    | 18,000,000      |   |         |        |   |   |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 8.25%           |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | $ 1,173,000,000 | 1,168,000,000   |   |         |        |   |   |
| Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Five Zero Senior Subordinated Convertible Notes [Member]           |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 10,000,000    | 14,000,000      |   |         |        |   |   |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 4.50%           |            |   |         |        | 4.50% |   |
| Long-term Debt                                                                                                                                             | $ 189,000,000   | 184,000,000     |   |         |        |   |   |
| Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member] |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 24,000,000    | 32,000,000      |   |         |        |   |   |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 4.75%           |            |   |         | 4.75%       |   |   |
| Long-term Debt                                                                                                                                             | $ 383,000,000   | 373,000,000     |   |         |        |   |   |
| Manufacturing Operations [Member] | Financing Arrangements and Capital Lease Obligations [Member]                                                          |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | $ 42,000,000    | 49,000,000      |   |         |        |   |   |
| Manufacturing Operations [Member] | Tax Exempt Bond [Member]                                                                                               |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 6.50%           |            |   |         |        |   | 6.50% |
| Long-term Debt                                                                                                                                             | $ 220,000,000   | 220,000,000     |   |         |        |   |   |
| Manufacturing Operations [Member] | Financed lease obligations [Member]                                                                                    |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | 52,000,000      | 111,000,000     |   |         |        |   |   |
| Manufacturing Operations [Member] | Notes Payable, Other Payables [Member]                                                                                 |            |            |   |         |        |   |   |
| **Debt Instrument [Line Items]**                                                                                                                           |            |            |   |         |        |   |   |
| Long-term Debt                                                                                                                                             | $ 28,000,000    | $ 43,000,000    |   |         |        |   |   |

| X                                                                                                                                                                                                                                                                                        |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Payments to subsidiary to meet convenant requirement
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Contractual interest rate for funds borrowed, under the debt agreement.
+ References
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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No definition available.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount, after accumulated amortization, of debt discount.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.
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| - Definition
Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of long-term debt and capital lease obligations including current maturities.
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