Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Cash Flows from Operating Activities:
Net Income (Loss)	$ (1,934)		$ (416)		$ 181
Adjustments required to reconcile net income to cash flows from operating activities:
Depreciation and amortization	459		460		495
Contract inducement amortization	3		3		2
Goodwill impairment	1,952		0		0
Deferred income taxes	(220)		(75)		(230)
(Gain) loss from investments	(4)		(2)		(10)
Amortization of debt financing costs	7		11		9
(Gain) loss on extinguishment of debt	0		108		0
(Gain) loss on divestitures and transaction costs	25		42		(42)
Stock-based compensation	24		38		40
Allowance for Doubtful Accounts	3		0		(1)
(Increase) decrease in accounts receivable	107		133		32
(Increase) decrease in other current and long-term assets	(14)		(111)		(32)
Increase (decrease) in accounts payable and accrued compensation	(32)		(56)		(49)
Increase (decrease) in restructuring liabilities	10		8		34
Increase (decrease) in other current and long-term liabilities	(257)		161		(125)
Net change in income tax assets and liabilities	3		(17)		11
Other operating, net	0		(4)		(15)
Net Cash Provided by (Used in) Operating Activities, Total	132		283		300
Cash Flows from Investing Activities:
Cost of additions to land, buildings and equipment	(148)		(179)		(96)
Proceeds from sale of land, buildings and equipment	2		13		33
Cost of additions to internal use software	(67)		(45)		(36)
Proceeds from investments	0		1		117
Payments to Acquire Businesses, Net of Cash Acquired	(90)		0		0
Proceeds from Divestiture of Businesses, Net of Cash Divested	0		675		56
Payments Related to Divestitures, Including Cash Sold	(7)		0		0
Other investing, net	0		(5)		0
Net Cash Provided By (Used In) Investing Activities	(310)		460		74
Cash Flows from Financing Activities:
Proceeds on long-term debt	0		0		306
Debt issuance fee payments	0		(3)		(8)
Payments on debt	(54)		(519)		(241)
Premium on debt redemption	0		(95)		0
Transfers (To) From Former Parent	0		0		(161)
Taxes paid for settlement of stock based compensation	(21)		(10)		(5)
Dividends paid on preferred stock	(10)		(10)		(10)
Other financing	0		0		(5)
Net Cash Provided By (Used In) Financing Activities	(85)		(637)		(124)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	3		(8)		1
Increase (decrease) in cash, cash equivalents and restricted cash	(260)		98		251
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	765	[1]	667	[1]	416
Cash, Cash Equivalents and Restricted Cash at End of period(1)	$ 505		$ 765	[1]	$ 667	[1]

[1] Includes $9 million of restricted cash as of each of the years December 31, 2019, 2018 and 2017, that was included in Other current assets on their respective Consolidated Balance Sheets.