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Investment Securities (Contractual maturities) (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2012
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Amortized Cost [Member]
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| Investment [Line Items] | |
| 2012 | $ 2,220 |
| 2013-2016 | 7,399 |
| 2017-2021 | 4,752 |
| 2022 and later | 17,761 |
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Estimated Fair Value [Member]
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| Investment [Line Items] | |
| 2012 | 2,245 |
| 2013-2016 | 7,391 |
| 2017-2021 | 5,270 |
| 2022 and later | $ 21,870 |
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- Definition
This item represents debt securities (excluding mortgage-backed and asset-backed securities), at cost, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, which are expected to mature after five years and through ten years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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- Definition
This item represents the fair value of debt securities (excluding mortgage-backed and asset-backed securities) which are expected to mature after five years and through ten years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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- Definition
This item represents debt securities (excluding mortgage-backed and asset-backed securities), at cost, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, which are expected to mature after one year and through five years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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| X | ||||||||||
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- Definition
This item represents the fair value of debt securities (excluding mortgage-backed and asset-backed securities) which are expected to mature after one year and through five years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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| X | ||||||||||
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- Definition
This item represents debt securities (excluding mortgage-backed and asset-backed securities), at cost, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, which are expected to mature after ten years from the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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| X | ||||||||||
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- Definition
This item represents the fair value of debt securities (excluding mortgage-backed and asset-backed securities) which are expected to mature after ten years from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. No definition available.
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| X | ||||||||||
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- Definition
This item represents debt securities (excluding mortgage-backed and asset-backed securities), at cost, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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- Definition
This item represents the fair value of debt securities (excluding mortgage-backed and asset-backed securities) which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. No definition available.
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- Details
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