Investments (Equity Method Investments, Statement of Financial Position) (Details) - USD ($) $ in Millions |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Investments [Abstract] | ||
| Total assets | $ 62,292 | $ 59,897 |
| Total liabilities | 15,225 | 14,787 |
| Partners’ capital | 47,067 | 45,110 |
| Total liabilities and partners’ capital | 62,292 | 59,897 |
| Total liabilities and partners’ capital included above | 5,515 | 5,135 |
| Equity in limited partnership interests not included above | 696 | 592 |
| Carrying value | $ 6,211 | $ 5,727 |
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- Definition Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of assets reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of equity, excluding noncontrolling interest, attributable to the equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of liabilities reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of liabilities and equity reported by an equity method investment of the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the entity's ownership percentage in the investee multiplied by the investee's total equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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