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Fair Value Measurements (Details 3) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Financial liabilities, Beginning Balance |  | $ (1,369) | $ (3,861)
Impact of accounting change |  |  | 2,701
Total realized/unrealized gains (losses) included in Net income |  | (17) | (50)
Total realized/unrealized gains (losses) included in other comprehensive income (loss) |  | 0 | 0
Purchases and issuances |  | (82) | (47)
Sales and settlements |  | 18 | 14
Transfer into Level 3 |  | 0 | 0
Transfer out of Level 3 |  | 0 | 0
Financial liabilities, Ending Balance | [1] | (1,450) | (1,243)
Liabilities of Managed Investment Entities [Member] |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Financial liabilities, Beginning Balance |  |  | (2,701)
Impact of accounting change | [2] |  | 2,701
Total realized/unrealized gains (losses) included in Net income |  |  | 0
Total realized/unrealized gains (losses) included in other comprehensive income (loss) |  |  | 0
Purchases and issuances |  |  | 0
Sales and settlements |  |  | 0
Transfer into Level 3 |  |  | 0
Transfer out of Level 3 |  |  | 0
Financial liabilities, Ending Balance |  |  | 0
Embedded derivatives [Member] |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Financial liabilities, Beginning Balance |  | (1,369) | (1,160)
Impact of accounting change |  |  | 0
Total realized/unrealized gains (losses) included in Net income |  | (17) | (50)
Total realized/unrealized gains (losses) included in other comprehensive income (loss) |  | 0 | 0
Purchases and issuances |  | (82) | (47)
Sales and settlements |  | 18 | 14
Transfer into Level 3 |  | 0 | 0
Transfer out of Level 3 |  | 0 | 0
Financial liabilities, Ending Balance |  | $ (1,450) | $ (1,243)
[1] | As discussed above, these tables exclude the portion of MIE liabilities allocated to Level 3, which are derived from the fair value of the MIE assets.
[2] | The impact of implementing new guidance adopted in 2015, as discussed above and in Note A — “Accounting Policies — Managed Investment Entities.”

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