Accrued Expenses And Other Payables (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Accrued Liabilities and Other Liabilities [Abstract]
Derivative Liability	$ 676	$ 605
Reinsurance Payable	424	425
Liability for Claims and Claims Adjustment Expense	534	459
Deferred Credits and Other Liabilities	781	1,152
Accrued expenses and other payables	1,263	1,472
Total accrued expenses and other payables	$ 3,678	$ 4,113