v3.7.0.1
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Cash flows from operating activities:    
Net income $ 170 $ 92
Adjustments to reconcile net income to net cash flows from operating activities:    
Depreciation and amortization 99 97
Change in fair value of contingent consideration 4 (15)
Share-based compensation expense 54 57
Deferred taxes (1) 29
Unrealized foreign currency gain (15) (14)
Unrealized loss on forward contracts 11 17
Other 2 1
Changes in operating assets and liabilities:    
Accounts receivable (3) (37)
Inventories (19) (4)
Prepaid expenses and other assets (13) (65)
Accounts payable, accrued expenses and other liabilities 39 (42)
Deferred revenue (20) 58
Net cash provided by operating activities 308 174
Cash flows from investing activities:    
Purchases of available-for-sale securities (700) (208)
Proceeds from maturity or sale of available-for-sale securities 282 269
Purchases of trading securities (3) (3)
Purchases of property, plant and equipment (75) (64)
Net cash used in investing activities (495) (6)
Proceeds from sale of trading securities 1 0
Cash flows from financing activities:    
Payments on term loan (44) (175)
Repurchase of Common Stock (68) (297)
Net proceeds from the exercise of stock options 47 4
Other (4) (4)
Net cash used in financing activities (69) (472)
Effect of exchange rate changes on cash 3 4
Net change in cash and cash equivalents (253) (300)
Cash and cash equivalents at beginning of period 966 1,010
Cash and cash equivalents at end of period 713  
Supplemental cash flow disclosures from investing and financing activities:    
Capitalization of construction costs related to facility lease obligations 39 26
Accrued expenses for purchases of property, plant and equipment $ 30 $ 25