CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 1,690	$ 488
Restricted cash - current	3	4
Accounts receivable, less allowance of $106 and $142	2,259	2,398
Assets held for sale	8	12
Other	808	918
Total current assets	4,768	3,820
Property, plant and equipment, net of accumulated depreciation of $29,346 and $26,859	26,079	26,408
GOODWILL AND OTHER ASSETS
Goodwill	21,534	28,031
Operating lease assets	1,686
Restricted cash	24	26
Customer relationships, net	7,596	8,911
Other intangible assets, net	1,971	1,868
Other, net	1,084	1,192
Total goodwill and other assets	33,895	40,028
TOTAL ASSETS	64,742	70,256
CURRENT LIABILITIES
Current maturities of long-term debt	2,300	652
Accounts payable	1,724	1,933
Accrued expenses and other liabilities
Salaries and benefits	1,037	1,104
Income and other taxes	311	337
Current operating lease liabilities	416
Interest	280	316
Other	386	357
Advance billings and customer deposits	804	832
Total current liabilities	7,258	5,531
LONG-TERM DEBT	32,394	35,409
DEFERRED CREDITS AND OTHER LIABILITIES
Deferred income taxes, net	2,918	2,527
Benefit plan obligations, net	4,594	4,319
Noncurrent operating lease liabilities	1,342
Other	2,766	2,642
Total deferred credits and other liabilities	11,620	9,488
COMMITMENTS AND CONTINGENCIES (Note 19)
STOCKHOLDERS' EQUITY
Preferred stock — non-redeemable, $25 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 1,090,058 and 1,080,167 shares	1,090	1,080
Additional paid-in capital	21,874	22,852
Accumulated other comprehensive loss	(2,680)	(2,461)
Accumulated deficit	(6,814)	(1,643)
Total stockholders' equity	13,470	19,828
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 64,742	$ 70,256