Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Assets:
Cash and cash equivalents	$ 1,056	$ 1,819
Marketable securities	1,127	0
Restricted cash and securities	5	7
Receivables, less allowances for doubtful accounts of $32 and $29, respectively	707	712
Other	141	115
Total Current Assets	3,036	2,653
Property, Plant and Equipment, net of accumulated depreciation of $11,874 and $11,249, respectively	10,392	10,139
Restricted Cash and Securities	29	31
Goodwill	7,737	7,729
Other Intangibles, net	809	915
Deferred Tax Assets	3,235	3,370
Other Assets, net	49	51
Total Assets	25,287	24,888
Liabilities and Stockholders' Equity:
Accounts payable	693	706
Current portion of long-term debt	306	7
Accrued payroll and employee benefits	178	195
Accrued interest	97	129
Current portion of deferred revenue	262	266
Other	162	168
Total Current Liabilities	1,698	1,471
Long-Term Debt, less current portion	10,584	10,877
Deferred Revenue, less current portion	1,058	1,001
Other Liabilities	632	622
Total Liabilities	13,972	13,971
Commitments and Contingencies
Stockholders’ Equity:
Preferred stock, $.01 par value, authorized 10,000,000 shares: no shares issued or outstanding	0	0
Common stock, $.01 par value, authorized 433,333,333 shares in both periods; 361,479,420 issued and outstanding at June 30, 2017 and 360,021,098 issued and outstanding at December 31, 2016	4	4
Additional paid-in capital	19,887	19,800
Accumulated other comprehensive loss	(325)	(387)
Accumulated deficit	(8,251)	(8,500)
Total Stockholders’ Equity	11,315	10,917
Total Liabilities and Stockholders’ Equity	$ 25,287	$ 24,888