Financial Instruments - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Derivative asset	$ 58,000,000	$ 74,000,000
Derivative liability	27,000,000	82,000,000
Gain (loss) earnings effects of related forecast transactions	10,000,000
Derivative, notional amount	5,700,000,000	6,400,000,000
Derivative, notional amount, net	1,800,000,000	2,800,000,000
Equity securities without readily determinable fair values	637,000,000	$ 542,000,000
Equity securities, unrealized gain	$ 19,000,000
Cash flow hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, term	1 year	2 years
All other current assets
Derivative Instruments, Gain (Loss) [Line Items]
Derivative asset	$ 52,000,000	$ 67,000,000
All other assets
Derivative Instruments, Gain (Loss) [Line Items]
Derivative asset	6,000,000	7,000,000
All other current liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability	24,000,000	79,000,000
All other liabilities
Derivative Instruments, Gain (Loss) [Line Items]
Derivative liability	3,000,000	3,000,000
Level 3
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on Level 3 instruments held at reporting date	0
Related party amount, due to related party | GE | Angola Bonds
Derivative Instruments, Gain (Loss) [Line Items]
Investment securities	$ 111,000,000	$ 149,000,000