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

9 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental Disclosure of Cash Flow Information	Nine Months Ended September 30,
	2020		2019
Cash paid during the period for:
Income taxes	$	11	$	11
Interest on long-term debt	83		110
Non-cash financing activities:
Exchange of investments in Puerto Rico COFINA bonds for new bonds issued in the Plan of Adjustment	$	—	$	510
	September 30,
	2020		2019
Reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets to the Consolidated Statements of Cash Flows:
Cash and cash equivalents	$	37	$	52
Restricted cash	10		13
Variable Interest Entity Restricted cash	2		3
Total cash, cash equivalents, and restricted cash shown on the Consolidated Statements of Cash Flows	$	50	$	68