Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income	$ 35	$ 160	$ 233
Add (deduct) adjustments to reconcile net income to net cash flows from operating activities
Depreciation, amortization and accretion	700	678	683
Bad debts expense	132	56	72
Stock-based compensation expense	24	27	32
Deferred income taxes, net	33	41	130
Equity in earnings of unconsolidated entities	(158)	(179)	(179)
Distributions from unconsolidated entities	145	176	189
Loss on impairment of licenses	3	0	0
(Gain) loss on asset disposals, net	19	23	25
(Gain) loss on sale of business and other exit costs, net	(1)	(2)	0
(Gain) loss on license sales and exchanges, net	0	0	(5)
(Gain) loss on investments	0	0	(2)
Other operating activities	9	33	2
Changes in assets and liabilities from operations
Accounts receivable	(59)	(27)	(8)
Equipment installment plans receivable	(199)	(116)	(54)
Inventory	(88)	(27)	16
Accounts payable	12	(57)	145
Customer deposits and deferred revenues	47	40	2
Accrued taxes	121	(41)	(57)
Other assets and liabilities	57	17	13
Net cash provided by operating activities	832	802	1,237
Cash flows from investing activities
Cash paid for additions to property, plant and equipment	(602)	(724)	(989)
Cash paid for licenses	(585)	(1,302)	(171)
Cash received from divestitures and exchanges	8	3	26
Advance payments for license acquisitions	0	(20)	(30)
Other investing activities	0	7	1
Net cash used in investing activities	(1,179)	(2,036)	(1,163)
Cash flows from financing activities
Issuance of long-term debt	800	1,342	1,125
Repayment of long-term debt	(329)	(1,118)	(108)
Issuance of short-term debt	110	0	0
Repayment of short-term debt	(50)	0	0
Common Shares reissued for benefit plans, net of tax payments	(5)	(16)	(11)
Repurchase of Common Shares	(43)	(31)	(23)
Payment of debt issuance costs	(1)	(22)	(38)
Distributions to noncontrolling interests	(3)	(3)	(6)
Payments to acquire additional interest in subsidiaries	0	0	(11)
Cash paid for software license agreements	(22)	(9)	(2)
Other financing activities	(1)	(1)	0
Net cash provided by financing activities	456	142	926
Net increase (decrease) in cash, cash equivalents and restricted cash	109	(1,092)	1,000
Cash, cash equivalents and restricted cash
Beginning of period	199	1,291	291
End of period	$ 308	$ 199	$ 1,291