Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Condensed Consolidated Statements of Cash Flows [Abstract]
Cash and Cash Equivalents and Restricted Cash at Beginning of Period	$ 563	$ 386
Cash Flows from Operating Activities from Continuing Operations:
Net Income	207	204
Adjustments to reconcile net income to net cash provided from operating activities:
Gain from discontinued operations, net of income taxes		(1)
Depreciation expense	62	56
Amortization expense	20	20
Amortization of debt issuance costs	4	4
401(k) Plan corrective contribution		(3)
Fumigation related matters	1	2
Payments on fumigation related matters	(1)	(2)
Impairment of software and other related costs		2
Loss on extinguishment of debt	10	6
Deferred income tax (benefit) provision	21	27
Stock-based compensation expense	11	10
Gain on sales of marketable securities	(1)
Restructuring charges	13	17
Payments for restructuring charges	(11)	(5)
American Home Shield spin-off charges	23	7
Payments for American Home Shield spin-off charges	(15)	(3)
Other	(8)	14
Change in working capital, net of acquisitions:
Receivables	(1)	(81)
Inventories and other current assets	(38)	(8)
Accounts payable	26	13
Deferred revenue	(6)	35
Accrued liabilities	25	17
Accrued interest payable	6	3
Current income taxes	16	3
Net Cash Provided from Operating Activities from Continuing Operations	365	340
Cash Flows from Investing Activities from Continuing Operations:
Property additions	(60)	(50)
Government grant fundings for property additions	7	2
Sale of equipment and other assets	1	4
Business acquisitions, net of cash acquired	(160)	(12)
Purchases of available-for-sale securities	(16)	(9)
Sales and maturities of available-for-sale securities	33	23
Origination of notes receivable	(79)	(80)
Collections on notes receivable	74	76
Other investments		(1)
Net Cash Used for Investing Activities from Continuing Operations	(198)	(48)
Cash Flows from Financing Activities from Continuing Operations:
Borrowings of debt	1,000
Payments of debt	(1,109)	(78)
Discount paid on issuance of debt	(2)
Debt issuance costs paid	(16)
Call premium paid on retirement of debt		(1)
Repurchase of common stock		(85)
Issuance of common stock	6	27
Net Cash Used for Financing Activities from Continuing Operations	(119)	(136)
Cash Flows from Discontinued Operations:
Cash provided from operating activities		1
Net Cash Provided from Discontinued Operations		1
Effect of Exchange Rate Changes on Cash		1
Cash (Decrease) Increase During the Period	47	159
Cash and Cash Equivalents and Restricted Cash at End of Period	$ 610	$ 545