CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 1,404	$ 488
Restricted cash	3	4
Accounts receivable, less allowance of $143 and $142	2,290	2,398
Assets held for sale	8	12
Other	884	918
Total current assets	4,589	3,820
Property, plant and equipment, net of accumulated depreciation of $28,760 and $26,859	25,874	26,408
GOODWILL AND OTHER ASSETS
Goodwill	21,507	28,031
Operating lease assets	1,721
Restricted cash	24	26
Customer relationships, net	7,902	8,911
Other intangibles, net	1,977	1,868
Other, net	1,134	1,192
Total goodwill and other assets	34,265	40,028
TOTAL ASSETS	64,728	70,256
CURRENT LIABILITIES
Current maturities of long-term debt	1,744	652
Accounts payable	1,712	1,933
Accrued expenses and other liabilities
Salaries and benefits	882	1,104
Income and other taxes	388	337
Current operating lease liabilities	419
Interest	328	316
Other	318	357
Current portion of deferred revenue	798	832
Total current liabilities	6,589	5,531
LONG-TERM DEBT	33,381	35,409
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred income taxes, net	2,910	2,527
Benefit plan obligations, net	4,140	4,319
Noncurrent operating lease liabilities	1,351
Other	2,683	2,642
Total deferred credits and other liabilities	11,084	9,488
COMMITMENTS AND CONTINGENCIES (Note 12)
STOCKHOLDERS' EQUITY
Preferred stock—non-redeemable, $25.00 par value, authorized 2,000 and 2,000 shares, issued and outstanding 7 and 7 shares	0	0
Common stock, $1.00 par value, authorized 2,200,000 and 1,600,000 shares, issued and outstanding 1,090,326 and 1,080,167 shares	1,090	1,080
Additional paid-in capital	22,101	22,852
Accumulated other comprehensive loss	(2,499)	(2,461)
Accumulated deficit	(7,018)	(1,643)
Total stockholders' equity	13,674	19,828
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 64,728	$ 70,256