CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income	$ 659.5	$ 444.7
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	65.4	61.1
Stock-based compensation expense	57.1	48.9
CCXI gains	(59.7)
Purchase price hedge gain	(41.2)
Deferred income taxes	193.5	13.7
Changes in assets and liabilities:
Accounts receivable	(16.5)	(45.2)
Other current assets	(91.0)	19.2
Other assets	8.9	13.7
Accounts payable and accrued liabilities	(884.5)	(69.8)
Deferred revenue	43.9	66.7
Unrecognized tax benefits and other non-current tax liabilities	8.4	(4.3)
Other liabilities	8.5	(2.3)
Net cash provided by operating activities	(47.7)	546.4
Cash flows from investing activities
Capital additions	(42.8)	(54.3)
Purchases of investments	(75.3)	(174.5)
Sales and maturities of investments	161.6	294.9
Cash paid for acquisitions, net of cash acquired and equity investments	(5.0)	(75.9)
Receipts from settlements of net investment hedges	1.4	2.5
Net cash used in investing activities	39.9	(7.3)
Cash flows from financing activities
Issuance of notes	1,791.9
Repayments of notes	(300.0)
Issuance of commercial paper	703.7
Repayments of commercial paper	(703.7)
Proceeds from stock-based compensation plans	39.1	36.9
Repurchase of shares related to stock-based compensation	(47.9)	(43.2)
Cost of treasury shares repurchased	(134.5)	(485.9)
Payment of Dividends	(145.2)	(143.6)
Payment of Dividends to noncontrolling interests	(0.8)	(4.6)
Payment for noncontrolling interest	(6.2)
Debt issuance costs and related fees	(18.8)
Net cash (used in) provided by financing activities	1,177.6	(640.4)
Effect of exchange rate changes on cash and cash equivalents	59.6	18.2
Net increase (decrease) in cash and cash equivalents	1,229.4	(83.1)
Cash and cash equivalents, beginning of the period	2,051.5	1,757.4
Cash and cash equivalents, end of the period	$ 3,280.9	$ 1,674.3