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Revenue Statement of Cash Flows (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income | $ 147.8 | $ 107.6 | $ 131.7 | $ 128.9
Adjustments to reconcile net income to net cash used in operating activities: |  |  |  |
Depreciation and amortization | 44.0 | 41.3 | 90.0 | 82.3
Provision for uncollectible receivables |  |  | 6.1 | 8.6
Amortization of restricted stock and other non-cash compensation |  |  | 46.0 | 46.0
Net amortization of bond discounts and deferred financing costs |  |  | 2.7 | 2.8
Deferred income tax benefit |  |  | (31.0) | 9.5
Net gains on sales of businesses | 19.8 | 13.1 | 44.2 | 12.2
Other |  |  | 1.9 | 10.2
Changes in assets and liabilities, net of acquisitions and divestitures, providing (using) cash: |  |  |  |
Accounts receivable |  |  | 238.0 | 769.7
Expenditures billable to clients |  |  |  | 0.0
Accounts receivable, billable to clients |  |  | (233.7) | (165.5)
Other current assets |  |  | (124.6) | (84.5)
Accounts payable |  |  | (579.3) | (651.3)
Accrued liabilities |  |  | (175.9) | (313.9)
Contract liabilities |  |  | 38.0 | 6.9
Other non-current assets and liabilities |  |  | (11.8) | (15.0)
Net cash used in operating activities |  |  | (557.7) | (153.1)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Capital expenditures | (38.7) | (44.1) | (61.5) | (68.9)
Acquisitions, net of cash acquired |  |  | (8.5) | (12.6)
Other investing activities |  |  | 12.4 | (14.5)
Net cash used in investing activities |  |  | (57.6) | (96.0)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Net increase in short-term borrowings |  |  | 669.3 | 153.5
Exercise of stock options |  |  | 7.0 | 11.8
Common stock dividends |  |  | (161.2) | (141.4)
Repurchase of common stock |  |  | (114.5) | (115.0)
Tax payments for employee shares withheld |  |  | (28.0) | (37.8)
Distributions to noncontrolling interests |  |  | (10.6) | (10.9)
Other financing activities |  |  | (0.3) | 0.3
Net cash provided by (used in) financing activities |  |  | 341.0 | (199.4)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash |  |  | (27.5) | 8.2
Net decrease in cash, cash equivalents and restricted cash |  |  | (301.8) | (440.3)
Cash, cash equivalents, and restricted cash at beginning of period |  |  | 797.7 | 1,100.2
Cash, cash equivalents, and restricted cash at end of period | $ 495.9 | 659.9 | $ 495.9 | 659.9
As Previously Reported |  |  |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income |  | 94.6 |  | 112.7
Adjustments to reconcile net income to net cash used in operating activities: |  |  |  |
Depreciation and amortization |  |  |  | 82.3
Provision for uncollectible receivables |  |  |  | 8.6
Amortization of restricted stock and other non-cash compensation |  |  |  | 46.0
Net amortization of bond discounts and deferred financing costs |  |  |  | 2.8
Deferred income tax benefit |  |  |  | 1.5
Net gains on sales of businesses |  |  |  | 12.2
Other |  |  |  | 10.2
Changes in assets and liabilities, net of acquisitions and divestitures, providing (using) cash: |  |  |  |
Accounts receivable |  |  |  | 769.7
Expenditures billable to clients |  |  |  | (165.3)
Accounts receivable, billable to clients |  |  |  | 0.0
Other current assets |  |  |  | (82.0)
Accounts payable |  |  |  | (622.9)
Accrued liabilities |  |  |  | (313.9)
Contract liabilities |  |  |  | 0.0
Other non-current assets and liabilities |  |  |  | (15.0)
Net cash used in operating activities |  |  |  | (153.1)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Net cash used in investing activities |  |  |  | (96.0)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Net cash provided by (used in) financing activities |  |  |  | (199.4)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash |  |  |  | 8.2
Net decrease in cash, cash equivalents and restricted cash |  |  |  | (440.3)
Cash, cash equivalents, and restricted cash at beginning of period |  |  |  | 1,100.2
Cash, cash equivalents, and restricted cash at end of period |  | 659.9 |  | 659.9
ASC 606 Adjustments |  |  |  |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income |  | 13.0 |  | 16.2
Adjustments to reconcile net income to net cash used in operating activities: |  |  |  |
Depreciation and amortization |  |  |  | 0.0
Provision for uncollectible receivables |  |  |  | 0.0
Amortization of restricted stock and other non-cash compensation |  |  |  | 0.0
Net amortization of bond discounts and deferred financing costs |  |  |  | 0.0
Deferred income tax benefit |  |  |  | 8.0
Net gains on sales of businesses |  |  |  | 0.0
Other |  |  |  | 0.0
Changes in assets and liabilities, net of acquisitions and divestitures, providing (using) cash: |  |  |  |
Accounts receivable |  |  |  | 0.0
Expenditures billable to clients |  |  |  | 165.3
Accounts receivable, billable to clients |  |  |  | (165.5)
Other current assets |  |  |  | (2.5)
Accounts payable |  |  |  | (28.4)
Accrued liabilities |  |  |  | 0.0
Contract liabilities |  |  |  | 6.9
Other non-current assets and liabilities |  |  |  | 0.0
Net cash used in operating activities |  |  |  | 0.0
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Net cash used in investing activities |  |  |  | 0.0
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Net cash provided by (used in) financing activities |  |  |  | 0.0
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash |  |  |  | 0.0
Net decrease in cash, cash equivalents and restricted cash |  |  |  | 0.0
Cash, cash equivalents, and restricted cash at beginning of period |  |  |  | 0.0
Cash, cash equivalents, and restricted cash at end of period |  | $ 0.0 |  | $ 0.0

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- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 25 -Paragraph 19A -URI http://asc.fasb.org/extlink&oid=107668666&loc=SL79513924-113897 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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