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Derivatives and Hedging Activities (Details Textuals) (USD $) Share data in Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012
Derivatives and Hedging Activities (Textuals) [Abstract] |  |  |  |  |
Net reduction in interest expense on long term debt and other | $ 76,000,000 | $ 127,000,000 | $ 280,000,000 | $ 377,000,000 |
Net pretax losses on derivatives reclassified from AOCI into earnings |  |  | 0 |  |
Derivative asset not offset | 0 |  | 0 |  | 0
Derivative liabilities not offset | 0 |  | 0 |  | 0
Derivative [Line Items] |  |  |  |  |
Equity investment | 168,000,000 |  | 168,000,000 |  | 296,000,000
Margin On Interest Rate Swap Not Netted | 33,000,000 |  | 33,000,000 |  | 0
ICBC [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Equity investment | 167,000,000 |  | 167,000,000 |  | 295,000,000
Shares held in equity investment | 239.5 |  | 239.5 |  | 415.9
Fair Value Hedges [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount of long-term debt | 14,700,000,000 |  | 14,700,000,000 |  | 18,400,000,000
Net Investment Hedges [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Effective portion of gain (loss) on hedges | (123,000,000) | (320,000,000) | 160,000,000 | (294,000,000) |
Credit Valuation Adjustment [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Notional amount of long-term debt | $ 0 |  | $ 0 |  | $ 0

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- Definition Fair value of derivative assets that are permitted under a master netting arrangement, but elected not to be presented as an offset against an obligation to return collateral received against such assets. + References No definition available. + Details
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- Definition Fair value of derivative liabilities that are permitted under a master netting arrangement, but elected not to be presented as an offset against the right to receive collateral paid against such liabilities. + References No definition available. + Details
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- Definition Effective portion of cumulative gains and losses on foreign currency derivatives that are designated as, and are effective as, hedges of a net investment in a foreign entity commencing as of the designation date. Adjustment reported in equity as part of accumulated other comprehensive income. + References No definition available. + Details
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- Definition Amount posted as initial margin for centrally cleared interest rate swaps which is not netted against the derivative balances. + References No definition available. + Details
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- Definition Represents the amount of a net reduction to interest expense on long-term debt and other, primarily related to the net settlements on the Company's fair value hedges. + References No definition available. + Details
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- Definition Amount of equity securities categorized neither as held-to-maturity nor as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994 + Details
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