|
Activity Related to Noncontrolling Interests (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Noncontrolling Interest [Line Items] | ||
| Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests | $ 1us-gaap_MinorityInterestDecreaseFromRedemptions | $ 1us-gaap_MinorityInterestDecreaseFromRedemptions |
| Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] | ||
| Balance at beginning of period | 17us-gaap_MinorityInterest | 14us-gaap_MinorityInterest |
| Dividends attributable to noncontrolling interests | 0us-gaap_PaymentsOfDividendsMinorityInterest | 0us-gaap_PaymentsOfDividendsMinorityInterest |
| Net income attributable to noncontrolling interests | 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest | 0us-gaap_NetIncomeLossAttributableToNoncontrollingInterest |
| Balance at end of period | $ 18us-gaap_MinorityInterest | $ 15us-gaap_MinorityInterest |
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of Net Income (Loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|