Business Acquisition, Consideration to be Transferred, Planned Acquisition

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- Definition

Business Acquisition, Percentage of Interests Acquired, Planned Acquisition

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- Definition

Equity Method Investment, Shares Owned

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Value of all classes of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares exclude common shares repurchased by the entity and held as treasury shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 30
-Article 5

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Price of a single share of a number of saleable stocks of a company.

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Fair Value Measurements - Equity Method Investments, Summarized Financial Information (Details) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($)	Dec. 31, 2015 ZAR / shares	Feb. 24, 2015 USD ($)	Jul. 24, 2014 ZAR / shares	Jun. 30, 2014
Schedule of Equity Method Investments [Line Items]
Total consideration	$ 1,200	$ 772
Carrying value of equity method investments	347	388
Alexander Forbes Group Holdings Limited
Schedule of Equity Method Investments [Line Items]
Carrying value of equity method investments	$ 230
Equity investment shares owned by the Company \| shares	443
Share price \| ZAR / shares			ZAR 5.78
Market value of equity method investment	$ 166
Mercer Consulting Group \| Benefitfocus
Schedule of Equity Method Investments [Line Items]
Percentage of interest acquired				9.90%
Business acquisition, consideration to be transferred, planned acquisition				$ 75
Common stock, value, outstanding	102
Mercer Consulting Group \| Alexander Forbes Group Holdings Limited
Schedule of Equity Method Investments [Line Items]
Percentage of interest acquired						34.00%
Share price \| ZAR / shares					ZAR 7.50
Value of carrying amount that exceeds share in equity method investment	$ 146
Other Assets \| Mercer Consulting Group \| Alexander Forbes Group Holdings Limited
Schedule of Equity Method Investments [Line Items]
Total consideration		$ 300
Maximum \| Alexander Forbes Group Holdings Limited
Schedule of Equity Method Investments [Line Items]
Share price \| ZAR / shares			10.38
Minimum \| Alexander Forbes Group Holdings Limited
Schedule of Equity Method Investments [Line Items]
Share price \| ZAR / shares			ZAR 5.32