v3.5.0.2
Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Statement of Cash Flows [Abstract]    
Proceeds from term deposits and sales of available-for-sale investments $ 0 $ 1,084
Operating activities    
Net income 740 612
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 289 182
Stock-based compensation 60 47
Deferred taxes 49 (38)
Amortization of Debt Discount (Premium) 0 (23)
Other 4 (17)
Changes in assets and liabilities:    
Customer accounts receivable (157) (91)
Prepaid expenses and other current assets (21) (25)
Income taxes payable 79 31
Deferred revenue 257 237
Other current and non-current liabilities (197) (145)
Total adjustments 363 158
Net cash provided by operating activities 1,103 770
Investing activities    
Capital expenditures (96) (92)
Capitalized software development costs (61) (44)
Cash paid for equity method investment (70) (60)
Increase in restricted cash and investments (75) 11
Net cash provide by (used in) investing activities (302) 899
Financing activities    
Proceeds from (repayments of) commercial paper, net (781) (918)
Dividends to shareholders (205) (158)
Payments relating to treasury shares received for restricted stock tax payments and stock option exercises (48) (39)
Repurchases of common stock 0 (399)
Distributions of profits to non-controlling interest (10) (17)
Proceeds from (Payments for) Other Financing Activities 13 24
Net cash used in financing activities (1,031) (1,635)
Effect of exchange rate changes on cash and cash equivalents (7) (8)
Net increase (decrease) in cash and cash equivalents (237) 26
Cash and cash equivalents, beginning of period 627 652
Cash and cash equivalents, end of period 390  
Supplemental cash flow disclosure    
Cash paid for income taxes 275 233
Cash paid for interest $ 88 $ 91