Basis of Presentation and Significant Accounting Policies Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2020

Schedule of Cash Flow Supplemental Information [Line Items]

Schedule of Supplemental Cash Flow Information [Table Text Block]

Supplemental Disclosure of Cash Flow Information

Year Ended December 31,	2020		2019		2018
Cash paid during the period for:
Income taxes	$	11	$	21	$	35
Interest on long-term debt	107		143		232
Non-cash investing and financing activities:
Increase in long-term debt in exchange for AMPS	—		—		187
Exchange of investments in Puerto Rico COFINA bonds for new bonds issued in the Plan of Adjustment	—		510		—
Decrease in long-term debt as a result of an exchange for investment securities	—		—		—
Rehabilitation exit transaction discharge of all Deferred Amounts and cancellation of certain senior surplus notes	—		—		1,919
December 31,	2020		2019		2018
Reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets to the Consolidated Statements of Cash Flow:
Cash and cash equivalents	$	20	$	24	$	63
Restricted cash	13		55		19
Variable Interest Entity Restricted cash	2		2		1
Total cash, cash equivalents, and restricted cash shown on the Consolidated Statements of Cash Flows	35		81		83

Cash Flow, Supplemental Disclosures [Text Block]

Supplemental information related to leases is as follows:

Year Ended December 31,	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	4	$	6
Right-of-use assets obtained in exchange for operating lease liabilities (non-cash) (1)	—		30

(1)     Includes right-of-use assets of $14 for the year ended December 31, 2019 for leases which existed prior to the New Lease Standard implementation date of January 1, 2019.