CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
OPERATING ACTIVITIES
Net income	$ 679	$ 272
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,858	2,739
Deferred income taxes	486	(243)
Loss on the sale of data centers and colocation business	0	82
Impairment of assets	46	11
Provision for uncollectible accounts	119	127
Net loss on early retirement of debt	30	5
Share-based compensation	144	64
Changes in current assets and liabilities:
Accounts receivable	(8)	2
Accounts payable	(151)	(93)
Accrued income and other taxes	217	103
Other current assets and liabilities, net	(42)	(221)
Retirement benefits	(639)	(181)
Changes in other noncurrent assets and liabilities, net	324	(54)
Other, net	(27)	87
Net cash provided by operating activities	5,036	2,700
INVESTING ACTIVITIES
Capital expenditures	(2,260)	(2,363)
Proceeds from the sale of data centers and colocation business, less cash sold	0	1,467
Proceeds from sale of property, plant and equipment and other assets	125	51
Other investing, net	(61)	(5)
Net cash used in investing activities	(2,196)	(850)
FINANCING ACTIVITIES
Net proceeds from issuance of long-term debt	130	6,608
Proceeds from financing obligation	0	356
Payments of long-term debt	(1,539)	(1,612)
Net borrowings (payments) on revolving line of credit	185	(370)
Dividends paid	(1,735)	(881)
Other financing, net	(48)	(11)
Net cash (used in) provided by financing activities	(3,007)	4,090
Net (decrease) increase in cash, cash equivalents, restricted cash and securities	(167)	5,940
Cash, cash equivalents, restricted cash and securities at beginning of period	587	224
Cash, cash equivalents, restricted cash and securities at end of period	420	6,164
Supplemental cash flow information:
Income taxes refunded (paid), net	674	(378)
Interest paid (net of capitalized interest of $42 and $61)	$ (1,571)	$ (917)