CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and cash equivalents	$ 438	$ 126
Accounts receivable, less allowance of $149 and $152	1,871	1,943
Other	617	581
Total current assets	2,926	2,650
NET PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment	39,229	38,785
Accumulated depreciation	(21,266)	(20,716)
Net property, plant and equipment	17,963	18,069
GOODWILL AND OTHER ASSETS
Goodwill	20,743	20,742
Other intangible assets, less accumulated amortization of $1,878 and $1,798	1,525	1,555
Other, net	662	660
Total goodwill and other assets	26,628	26,885
TOTAL ASSETS	47,517	47,604
CURRENT LIABILITIES
Current maturities of long-term debt	517	1,503
Accounts payable	1,039	968
Accrued expenses and other liabilities
Salaries and benefits	462	602
Income and other taxes	458	318
Interest	318	250
Other	302	220
Advance billings and customer deposits	730	743
Total current liabilities	3,826	4,604
LONG-TERM DEBT	19,508	18,722
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred income taxes, net	3,596	3,569
Benefit plan obligations, net	5,445	5,511
Other	1,106	1,138
Total deferred credits and other liabilities	$ 10,147	$ 10,218
COMMITMENTS AND CONTINGENCIES (Note 8)
STOCKHOLDERS' EQUITY
Preferred stock—non-redeemable, $25.00 par value, authorized 2,000 shares, issued and outstanding 7 and 7 shares	$ 0	$ 0
Common stock, $1.00 par value, authorized 1,600,000 and 1,600,000 shares, issued and outstanding 546,164 and 543,800 shares	546	544
Additional paid-in capital	15,184	15,178
Accumulated other comprehensive loss	(1,907)	(1,934)
Retained earnings	213	272
Total stockholders' equity	14,036	14,060
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	47,517	47,604
Customer relationships
Customer relationships, less accumulated amortization of $5,878 and $5,648	$ 3,698	$ 3,928