Accrued Expenses And Other Payables (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Accrued Liabilities and Other Liabilities [Abstract]
Derivative Liability	$ 642	$ 761
Employee-related Liabilities	304	337
Accrued Income Taxes, Current	55	0
Accrual for Taxes Other than Income Taxes, Current	107	98
Reinsurance Payable	11	15
Liability for Claims and Claims Adjustment Expense	294	277
Contract with Customer, Liability	319	501
Operating Lease, Liability, Current	186
Accrued expenses and other payables	1,009	924
Total accrued expenses and other payables	$ 2,927	$ 2,913