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Investments - Held To Maturity - Additional Information (Detail) (USD $)
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Jun. 30, 2014
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| Schedule of Held-to-maturity Securities [Line Items] | |
| Commitment amount upon closing merger transaction | $ 2,000,000,000 |
| Held to maturity investments, amortized cost | 1,500,000,000 |
| Held to maturity investments, recorded basis | 1,500,000,000 |
| Held to maturity investments, estimated fair value | 1,700,000,000 |
| Held to maturity investments, gross unrecognized holding gains | 164,000,000 |
| Held to maturity investments, unrealized loss position | $ 0 |
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- Definition
Amount we agreed to lend upon closing of the merger transaction. No definition available.
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- Definition
This item represents the excess of amortized cost basis over fair value of securities in a gain position and which are categorized as held-to-maturity. No definition available.
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- Definition
This item represents the excess of amortized cost basis over fair value of securities in a loss position and which are categorized as held-to-maturity. No definition available.
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- Definition
Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity. No definition available.
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- Definition
Fair value of investments in debt securities classified as held-to-maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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