Accelerated Share Repurchases Initial Delivery Percentage of Shares

No definition available.

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- Definition

Business Acquisition, Agreement Terms, Change of Control, Put Option for Minority Interest Ownership, Effective Period

+ References

No definition available.

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- Definition

Interest in joint venture minimum percentage.

+ References

No definition available.

+ Details

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- Definition

Maximum number of shares authorized for repurchase under stock repurchase plan as percentage of outstanding common stock.

+ References

No definition available.

+ Details

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- Definition

Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653

+ Details

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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- Details

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Equity - Narrative (Details) - USD ($)		3 Months Ended
Equity - Narrative (Details) - USD ($)	Mar. 06, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 04, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares purchased		5,000,000	1,500,000
Minimum interest in joint venture (as a percent)		20.00%
Agreement terms, change of control, put option for minority interest ownership, effective period		15 days
2013 Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized for repurchase (shares)				50,000,000
Shares authorized for repurchase, compared to total common stock outstanding (as a percent)				18.00%
Remaining shares available under repurchase program (shares)		14,000,000
S&P Dow Jones LLC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Noncontrolling interest ownership by noncontrolling owners (as a percent)		27.00%
Accelerated Share Repurchases, March 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized stock repurchase program amount	$ 1,000,000,000
Payments for accelerated share repurchases	$ 1,000,000,000
Initial Award \| Accelerated Share Repurchases, March 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of shares purchased	4,500,000
Accelerated share repurchases initial delivery percentage (as a percent)	85.00%