v2.4.0.8

Carrying Value and Fair Value of Blackstone Issued Notes (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified |  | 9 Months Ended | 0 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Sep. 30, 2014 6.625% Notes | Sep. 30, 2014 5.875% Notes | Sep. 30, 2014 4.750% Notes | Sep. 30, 2014 6.250% Notes | Apr. 07, 2014 5.000% Notes | Sep. 30, 2014 5.000% Notes | Apr. 07, 2014 5.000% Notes
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument, interest rate |  | 6.625% | 5.875% | 4.75% | 6.25% |  | 5.00% | 5.00%
Debt instrument, maturity date |  | Aug. 15, 2019 | Mar. 15, 2021 | Feb. 15, 2023 | Aug. 15, 2042 | Jun. 15, 2044 | Jun. 15, 2044 |
Senior Notes | $ 600 | $ 600 | $ 400 | $ 400 | $ 250 |  | $ 500 | $ 500
Notes acquired not retired | $ 15 |  |  |  |  |  |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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