Description of Business and Significant Accounting Policies - Out of Period Adjustments (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 3 Months Ended | |||||
---|---|---|---|---|---|---|---|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2013
Misapplication of Accounting Guidance Related to Recognition of Income Tax Expense [Member]
|
Sep. 30, 2012
Misapplication of Accounting Guidance Related to Recognition of Income Tax Expense [Member]
|
Dec. 31, 2011
Inter-company Transactions Included in Cumulative Translation Adjustment [Member]
|
Dec. 31, 2011
Brazil Tax Accounts Determined to be Unrecoverable [Member]
|
|
Income tax benefit | $ (98) | $ (223) | $ 66 | $ 15 | $ (5) | ||
Charges in other income and expense related to foreign currency fluctuations | 2 | ||||||
Increase in selling, general and administrative expenses to correct tax accounts in Brazil determined to be unrecoverable | $ 4 |