Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 719,875	$ 1,009,021
Short-term investments	55,603	48,988
Accounts receivable (net of allowance of $15,889 and $15,985, respectively)	488,028	524,424
Short-term finance receivables (net of allowance of $12,821 and $12,187, respectively)	792,802	828,003
Inventories	96,224	89,679
Current income taxes	42,274	58,439
Other current assets and prepayments	94,227	77,954
Total current assets	2,289,033	2,636,508
Property, plant and equipment, net	386,977	379,044
Rental property and equipment, net	182,727	185,741
Long-term finance receivables (net of allowance of $6,959 and $6,446 respectively)	640,987	652,087
Goodwill	1,965,984	1,952,444
Intangible assets, net	261,318	272,186
Noncurrent income taxes	61,367	59,909
Other assets	531,225	540,796
Total assets	6,319,618	6,678,715
Current liabilities:
Accounts payable and accrued liabilities	1,375,166	1,486,741
Current income taxes	9,457	8,823
Current portion of long-term debt	327,429	271,057
Advance billings	292,174	288,372
Total current liabilities	2,004,226	2,054,993
Deferred taxes on income	239,472	234,643
Tax uncertainties and other income tax liabilities	112,520	116,551
Long-term debt	3,248,713	3,559,278
Other noncurrent liabilities	499,794	524,689
Total liabilities	6,104,725	6,490,154
Commitments and contingencies (See Note 13)
Stockholders’ equity:
Cumulative preferred stock, $50 par value, 4% convertible	1	1
Cumulative preference stock, no par value, $2.12 convertible	422	441
Common stock, $1 par value (480,000,000 shares authorized; 323,337,912 shares issued)	323,338	323,338
Additional paid-in capital	119,647	138,367
Retained earnings	5,235,874	5,229,584
Accumulated other comprehensive loss	(771,995)	(792,173)
Treasury stock, at cost (136,194,172 and 136,734,174 shares, respectively)	(4,692,394)	(4,710,997)
Total stockholders’ equity	214,893	188,561
Total liabilities and stockholders’ equity	$ 6,319,618	$ 6,678,715