Derivative Financial Instruments and Risk Management (Details 5) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amount of Recognized Assets	$ 187	$ 84
Gross Amounts Offset	0	0
Net Amount of Assets	187	84
Gross Amounts Not Offset	(33)	(21)
Net Amount	154	63
Gross Amount of Recognized Liabilities	(41)	(50)
Gross Amounts Offset	0	0
Net Amount of Liabilities	(41)	(50)
Gross Amounts Not Offset	33	21
Net Amount	$ (8)	$ (29)