Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Cash provided by operating activities
Net income	$ 102	$ 143
Non-cash charges to net income:
Depreciation and amortization	51	54
Mechanical stores expense	13	15
Deferred income taxes	5	8
Other	18	8
Changes in working capital:
Accounts receivable and prepaid expenses	(70)	(56)
Inventories	(34)	(21)
Accounts payable and accrued liabilities	(67)	(57)
Margin accounts	1	16
Other	(1)	40
Cash provided by operating activities	18	150
Cash used for investing activities
Capital expenditures and mechanical stores purchases	(80)	(95)
Payments for acquisitions, net of cash acquired of $4 and $ — , respectively	(41)
Short-term investments	3	3
Other		6
Cash used for investing activities	(118)	(86)
Cash provided by (used for) financing activities
Proceeds from borrowings	225	46
Payments on debt	(217)	(258)
Repurchases of common stock, net	63
Issuances of common stock for share-based compensation, net of settlements	(1)	(3)
Dividends paid, including to non-controlling interests	(42)	(46)
Cash provided by (used for) financing activities	28	(261)
Effects of foreign exchange rate changes on cash		3
Decrease in cash and cash equivalents	(72)	(194)
Cash and cash equivalents, beginning of period	327	595
Cash and cash equivalents, end of period	$ 255	$ 401

The net change during the reporting period in the total amount due within one year (or one business cycle) from all parties associated with underlying transactions that are classified as operating activities, plus the net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods.

No definition available.