Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities
Net income	$ 28	$ 9
Add (deduct) adjustments to reconcile net income to net cash flows from operating activities
Depreciation, amortization and accretion	153	153
Bad debts expense	24	19
Stock-based compensation expense	7	5
Deferred income taxes, net	1	4
Equity in earnings of unconsolidated entities	(33)	(35)
Distributions from unconsolidated entities	11	14
(Gain) loss on asset disposals, net	4	5
(Gain) loss on license sales and exchanges, net	(17)
Changes in assets and liabilities from operations
Accounts receivable	26	15
Equipment installment plans receivable	(44)	(41)
Inventory	(3)	(2)
Accounts payable	(78)	43
Customer deposits and deferred revenues	(10)	(6)
Accrued taxes	22	30
Accrued interest	9	9
Other assets and liabilities	(39)	(59)
Net cash provided by operating activities	61	163
Cash flows from investing activities
Cash paid for additions to property, plant and equipment	(88)	(103)
Cash paid for licenses	(3)
Cash received from divestitures and exchanges	16	2
Other investing activities		(1)
Net cash used in investing activities	(75)	(102)
Cash flows from financing activities
Repayment of long-term debt	(3)	(3)
Common shares reissued for benefit plans, net of tax payments	3	1
Common shares repurchased		(2)
Net cash used in financing activities		(4)
Net increase (decrease) in cash and cash equivalents	(14)	57
Cash and cash equivalents
Beginning of period	586	715
End of period	$ 572	$ 772