Acquisitions, Disposals and Other Transactions - Schedule of Total Transaction Value for Acquisition (Detail) (Move Inc [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
Nov. 30, 2014
Move Inc [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Cash paid for Move equity	$ 864
Assumed equity compensation awards - pre-combination services	28
Total consideration transferred	892
Plus: Assumed debt	129
Plus: Assumed equity compensation awards - post-combination services	39
Less: Cash acquired	(108)
Total transaction value	$ 952

Business combination consideration transferred equity awards issued and issuable.

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Business combination fair value of equity awards assumed and converted for future service.

+ References

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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