|
Components of Other Assets (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
||||
|---|---|---|---|---|---|---|
| Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items] | ||||||
| Accounts receivable | $ 417 | [1] | $ 330 | [1] | ||
| Interest and dividends receivable | 150 | 142 | ||||
| Prepaid expenses | 114 | 153 | ||||
| Other investments | 59 | 57 | ||||
| Deferred tax asset - net | 27 | |||||
| Other | 73 | 109 | ||||
| Total other assets | $ 813 | $ 818 | ||||
|
||||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. No definition available.
|
| X | ||||||||||
|
- Definition
For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of the carrying amounts, as of the balance sheet date, of assets which have not been itemized or categorized in the footnotes to the financial statements and are a component of Other Assets (OtherAssets). No definition available.
|
| X | ||||||||||
|
- Definition
Other investments not otherwise specified in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|