Income Taxes (Details - Unrecognized Tax Benefits) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Contingency [Line Items]
Decrease in Unrecognized Tax Benefits is Reasonably Possible	$ 7
Income Tax Examination, Penalties and Interest Accrued	6	$ 3
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits	31	25	$ 28
Additions based on tax positions related to prior years	2	3	1
Additions based on tax positions related to current year	11	9	11
Reductions based on tax positions related to prior years	(2)	0	(3)
Settlements with taxing authorities	0	(2)	(6)
Statute of limitations lapses	(3)	(4)	(6)
Unrecognized tax benefits	39	$ 31	$ 25
Unrecognized Tax Benefits, Period Increase (Decrease)	8
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 31
HONG KONG | Earliest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2013
HONG KONG | Latest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2018
PHILIPPINES | Earliest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2016
PHILIPPINES | Latest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2019
UNITED KINGDOM | Earliest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2017
UNITED KINGDOM | Latest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2017
UNITED STATES | Earliest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2016
UNITED STATES | Latest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2019
Various States | Earliest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2013
Various States | Latest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2019