Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,127	$ 377
Accounts receivable, net of allowances of $63 and $58, respectively	2,415	2,500
Other current assets	464	465
Total current assets	4,006	3,342
Property and equipment, net of $2,138 and $2,054 in accumulated depreciation, respectively	2,632	2,704
Operating lease assets	2,143	2,245
Goodwill	4,395	4,450
Identifiable intangible assets, net of $825 and $850 in accumulated amortization, respectively	1,046	1,092
Other long-term assets	340	295
Total long-term assets	10,556	10,786
Total assets	14,562	14,128
Current liabilities:
Accounts payable	1,057	1,157
Accrued expenses	1,446	1,414
Short-term borrowings and current maturities of long-term debt	260	84
Short-term operating lease liabilities	456	468
Other current liabilities	166	135
Total current liabilities	3,385	3,258
Long-term debt	5,766	5,182
Deferred tax liability	505	495
Employee benefit obligations	152	157
Long-term operating lease liabilities	1,689	1,776
Other long-term liabilities	337	364
Total long-term liabilities	8,449	7,974
Stockholders’ equity:
Convertible perpetual preferred stock, $0.001 par value; 10 shares authorized; 0.07 of Series A shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively	41	41
Common stock, $0.001 par value; 300 shares authorized; 91 and 92 shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively	0	0
Additional paid-in capital	1,943	2,061
Retained earnings	804	786
Accumulated other comprehensive loss	(210)	(145)
Total stockholders’ equity before noncontrolling interests	2,578	2,743
Noncontrolling interests	150	153
Total equity	2,728	2,896
Total liabilities and equity	$ 14,562	$ 14,128