| **Stockholders' Equity (Deficit) (Details) (USD $)**             | 1 Months Ended  | 10 Months Ended | 12 Months Ended |                 |                 | 1 Months Ended | 10 Months Ended | 1 Months Ended |            | 1 Months Ended | 3 Months Ended | 12 Months Ended |           | 1 Months Ended |         |            |           | 12 Months Ended | 1 Months Ended |
|------------------------------------------------------------------|-----------------|-----------------|-----------------|-----------------|-----------------|----------------|-----------------|----------------|------------|----------------|----------------|-----------------|-----------|----------------|---------|------------|-----------|-----------------|----------------|
||
| **Class of Stock [Line Items]**                                  |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Exercise Price Stockholder Rights Plan                           |            |            |            |            |            | $ 140.00       |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Ownership Percentage Stockholder Rights Plan                     |            |            |            |            |            | 15.00%         |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Redeemable amount per right under Shareholder Rights Plan        |            |            |            |            |            | $ 0.00001      |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Preferred Stock, Shares Authorized                               | 30,000,000      |            | 30,000,000      |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   | 22,000 | 110,000,000 | 10,000,000 | 1 |   |   |   |
| Preferred Stock, Shares Issued                                   | 0               |            | 0               |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Preferred Stock, Par or Stated Value Per Share                   | $ 1             |            | $ 1             |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   | $ 1 |   |   |   | $ 1 | $ 1 | $ 1 |   |   |   |   |
| Number Of Members Entitled To Elect                              |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   | 1 |   |   |   |
| Preferred Stock, Shares Outstanding                              |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   | 126,403 | 136,801 |   |   |   |   |   |   |   |   |   |
| Preferred Stock, Liquidation Preference Per Share                |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   | $ 25 |   |   |   |   |   |   |   |   |   |   |
| Convertible Preferred Stock, Shares Issued upon Conversion       |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   | 0.3125 |   |   |   |   |   |   |   |   |   |   |
| Preferred Stock, Dividend Rate, Percentage                       |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   | 120.00% |   |   |   |   |   |   |   |   |   |   |
| Common Stock, Shares Authorized                                  | 220,000,000     |            | 220,000,000     | 220,000,000     |            |           | 110,000,000     |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Common Stock, Par or Stated Value Per Share                      | $ 0.10          |            | $ 0.10          | $ 0.10          |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Common Stock, Shares, Outstanding                                | 79,300,000      |            | 79,300,000      | 70,500,000      |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Stock Issued During Period, Shares, New Issues                   |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   | 10,666,666 | 763,534 |   |   |   |   |   |   |   |
| Price per share (in dollars per share)                           |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   | $ 18.75 | $ 18.75 |   |   |   |   |   |   |   |
| Proceeds from Issuance of Common Stock                           | 192,000,000     |            | 192,000,000     | 0               | 0               |           |            |           |       |           |           |            |      |           |    | 14,000,000 |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Payments for Derivative Instrument, Investing Activities         |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   | 125,000,000 |
| Proceeds from Issuance of Warrants                               |            |            |            |            |            |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   | 87,000,000 | 87,000,000 |   |
| Defined benefit plans                                            | (2,302,000,000) |            | (2,302,000,000) | (2,045,000,000) | (1,316,000,000) |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Foreign currency translation adjustments                         | (23,000,000)    |            | (23,000,000)    | 101,000,000     | 120,000,000     |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Accumulated other comprehensive loss                             | (2,325,000,000) |            | (2,325,000,000) | (1,944,000,000) | (1,196,000,000) |           |            |           |       |           |           |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Stock Repurchase Program, Authorized Amount                      |            |            |            |            |            |           |            | 175,000,000    | 25,000,000 |           |           |            |      |           |    |       |      | 75,000,000      | 5,000,000      | 70,000,000 |   |   |   |   |   |   |   |   |   |   |   |
| Treasury Stock, Shares, Acquired                                 |            | 532,016         |            |            |            |           |            |           |       | 2,542,609      |           |            | 2,380,952 |           |    |       | 1,905,600 |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Payments for Repurchase of Common Stock                          |            |            | 75,000,000      | 125,000,000     | 0               |           |            |           |       |           | 100,000,000    |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Accelerated Share Repurchases, Settlement Payment or Receipt     |            |            |            |            |            |           |            |           |       |           |           | 80,000,000      |      | 20,000,000     |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Accelerated Share Repurchases, Initial Price Paid Per Share      |            |            |            |            |            |           |            |           |       |           |           | $ 33.60         |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Stock Repurchase Program, Remaining Authorized Repurchase Amount |            |            |            | $ (20,000,000)  |            |           |            |           |       |           | $ 20,000,000   |            |      |           |    |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |
| Treasury Stock, Additional Shares Acquired                       |            |            |            |            |            |           |            |           |       |           |           |            |      |           | 161,657 |       |      |            |           |   |   |   |   |   |   |   |   |   |   |   |   |

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Number Of Members Entitled To Elect
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| - Definition
The price paid per share to immediately purchase the targeted number of shares on the date of executing the accelerated share repurchase agreement.
+ References
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| - Definition
Amount of cash payment to or cash receipt from the bank; or the stock issuance to or stock received from the bank in the settlement of the accelerated share repurchase agreement.
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| - Definition
The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.
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| - Definition
Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares issued for each share of convertible preferred stock that is converted.
+ References
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| - Definition
The cash outflow for derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash outflow to reacquire common stock during the period.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The percentage rate used to calculate dividend payments on preferred stock.
+ References
No definition available.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash inflow from the additional capital contribution to the entity.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Price of a single share of a number of saleable stocks of a company.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of new stock issued during the period.
+ References
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| - Definition
The amount authorized by an entity's Board of Directors under a stock repurchase plan.
+ References
No definition available.
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| - Definition
The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.
+ References
No definition available.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares that have been repurchased during the period and are being held in treasury.
+ References
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