| **Segment Reporting - Schedule of Revenues from External Customers and Long-Lived Assets (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| Sales and revenues, net                                                                                                                             | $ 3,279        | $ 3,319         | $ 3,298 | $ 3,052 | $ 4,323 | $ 3,537 | $ 3,355 | $ 2,743 | $ 12,948 | $ 13,958 | $ 12,145 |
| UNITED STATES [Member]                                                                                                                              |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| Sales and revenues, net                                                                                                                             |           |            |   |   |   |   |   |   | 9,075 | 9,646 | 8,847 |
| Long-Lived Assets                                                                                                                                   | 1,519          |            |   |   | 1,340 |   |   |   | 1,519 | 1,340 |   |
| CANADA [Member]                                                                                                                                     |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| Sales and revenues, net                                                                                                                             |           |            |   |   |   |   |   |   | 949 | 1,071 | 1,006 |
| Long-Lived Assets                                                                                                                                   | 28             |            |   |   | 83 |   |   |   | 28 | 83 |   |
| MEXICO [Member]                                                                                                                                     |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| Sales and revenues, net                                                                                                                             |           |            |   |   |   |   |   |   | 728 | 1,002 | 490 |
| Long-Lived Assets                                                                                                                                   | 94             |            |   |   | 152 |   |   |   | 94 | 152 |   |
| BRAZIL [Member]                                                                                                                                     |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| Sales and revenues, net                                                                                                                             |           |            |   |   |   |   |   |   | 1,066 | 1,190 | 961 |
| Long-Lived Assets                                                                                                                                   | 445            |            |   |   | 519 |   |   |   | 445 | 519 |   |
| Other Countries [Member]                                                                                                                            |           |            |   |   |   |   |   |   |   |   |   |
| **Revenues from External Customers and Long-Lived Assets [Line Items]**                                                                             |           |            |   |   |   |   |   |   |   |   |   |
| Sales and revenues, net                                                                                                                             |           |            |   |   |   |   |   |   | 1,130 | 1,049 | 841 |
| Long-Lived Assets                                                                                                                                   | $ 25           |            |   |   | $ 29 |   |   |   | $ 25 | $ 29 |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph b(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
+ Details**Name:**us-gaap_NoncurrentAssets**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5
+ Details**Name:**us-gaap_Revenues**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                            |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |