Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ (10)	$ 395	$ 390
Other comprehensive income (loss), net of tax
Unrealized gain (losses) on securities, net of reversals	(1)	0	1
Defined benefit pension and post retirement plans:
Change benefit obligations	0	3	2
Other	0	0	(1)
Other comprehensive income (loss), net of tax	(7)	(8)	15
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(17)	387	405
Comprehensive income	(12)	387	405
Net loss attributed to noncontrolling interest	5	0	0
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Other comprehensive income (loss), net of tax
Foreing currency translation adjustments	(10)	(17)	7
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Other comprehensive income (loss), net of tax
Foreing currency translation adjustments	0	3	2
Defined benefit pension and post retirement plans:
Amortization of amounts included in net periodic benefit cost	4	6	6
Other comprehensive income (loss), net of tax	$ 4	$ 9	$ 9