Accrued Expenses and Other Liabilities (Schedule of Accrued Expenses and Other Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Accounts Payable and Accrued Liabilities [Abstract]
Accounts Payable	$ 487	$ 298
Accrued Employee Benefits	236	298
Liability for Claims and Claims Adjustment Expense	182	208
Derivative Liability, Fair Value, Gross Liability	176	252
Deferred Revenue	126	151
Other Accrued Liabilities	544	528
Accrued expenses and other liabilities	$ 1,751	$ 1,735