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Summary of Significant Accounting Policies - ASC 606 (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Jan. 01, 2018 | Dec. 31, 2015
Revenues [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 3,712 | $ 3,504 | $ 3,734 | $ 4,000 | $ 3,685 | $ 3,341 | $ 3,495 | $ 3,503 | $ 14,950 | $ 14,024 | $ 13,211 |  |
Expense: |  |  |  |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  |  |  |  |  |  |  |  | 8,605 | 8,085 | 7,694 |  |
Other operating expenses |  |  |  |  |  |  |  |  | 3,584 | 3,284 | 3,086 |  |
Operating expenses |  |  |  |  |  |  |  |  | 12,189 | 11,369 | 10,780 |  |
Operating income | 621 | 541 | 691 | 908 | 670 | 535 | 701 | 749 | 2,761 | 2,655 | 2,431 |  |
Other net benefits credits |  |  |  |  |  |  |  |  | 215 | 201 | 233 |  |
Interest income |  |  |  |  |  |  |  |  | 11 | 9 | 5 |  |
Interest expense |  |  |  |  |  |  |  |  | (290) | (237) | (189) |  |
Acquisition related derivative contracts |  |  |  |  |  |  |  |  | (441) | 0 | 0 |  |
Income before income taxes |  |  |  |  |  |  |  |  | 2,244 | 2,643 | 2,480 |  |
Income tax expense |  |  |  |  |  |  |  |  | 574 | 1,133 | 685 |  |
Net income attributable to the Company |  |  |  |  |  |  |  |  | 1,650 | 1,490 | 1,768 |  |
Net income before non-controlling interests | 159 | 279 | 536 | 696 | 28 | 397 | 507 | 578 | 1,670 | 1,510 | 1,795 |  |
Less: Net income attributable to non-controlling interests |  |  |  |  |  |  |  |  | 20 | 20 | 27 |  |
Net income attributable to the Company | 153 | $ 276 | $ 531 | $ 690 | 29 | $ 393 | $ 501 | $ 569 | 1,650 | 1,492 | 1,768 |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 1,066 |  |  |  | 1,205 |  |  |  | 1,066 | 1,205 | 1,026 |  | $ 1,374
Net receivables | 4,317 |  |  |  | 4,133 |  |  |  | 4,317 | 4,133 |  | $ 4,201 |
Other current assets | 551 |  |  |  | 224 |  |  |  | 551 | 224 |  | 542 |
Total current assets | 5,934 |  |  |  | 5,562 |  |  |  | 5,934 | 5,562 |  |  |
Fixed assets, net | 701 |  |  |  | 712 |  |  |  | 701 | 712 | 725 |  |
Pension related assets | 1,688 |  |  |  | 1,693 |  |  |  | 1,688 | 1,693 |  |  |
Deferred tax assets |  |  |  |  | 669 |  |  |  |  | 669 |  | 552 |
Other assets | 1,539 |  |  |  | 1,430 |  |  |  | 1,539 | 1,430 |  | 1,656 |
Total assets | 21,578 |  |  |  | 20,429 |  |  |  | 21,578 | 20,429 | 18,190 |  |
LIABILITIES AND EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | 314 |  |  |  | 262 |  |  |  | 314 | 262 |  |  |
Accounts payable and accrued liabilities | 2,234 |  |  |  | 2,083 |  |  |  | 2,234 | 2,083 |  | 2,205 |
Accrued compensation and employee benefits | 1,778 |  |  |  | 1,718 |  |  |  | 1,778 | 1,718 |  |  |
Acquisition related derivatives | 441 |  |  |  | 0 |  |  |  | 441 | 0 |  |  |
Accrued income taxes | 157 |  |  |  | 199 |  |  |  | 157 | 199 |  |  |
Total current liabilities | 4,924 |  |  |  | 4,262 |  |  |  | 4,924 | 4,262 |  |  |
Fiduciary liabilities | 5,001 |  |  |  | 4,847 |  |  |  | 5,001 | 4,847 |  |  |
Less – cash and investments held in a fiduciary capacity | (5,001) |  |  |  | (4,847) |  |  |  | (5,001) | (4,847) |  |  |
Fiduciary liabilities, net, noncurrent | 0 |  |  |  | 0 |  |  |  | 0 | 0 |  |  |
Long-term debt | 5,510 |  |  |  | 5,225 |  |  |  | 5,510 | 5,225 |  |  |
Pension, postretirement and postemployment benefits | 1,911 |  |  |  | 1,888 |  |  |  | 1,911 | 1,888 |  |  |
Liability for errors and omissions | 287 |  |  |  | 301 |  |  |  | 287 | 301 |  |  |
Other liabilities | 1,362 |  |  |  | 1,311 |  |  |  | 1,362 | 1,311 |  | 1,334 |
Total equity | 7,584 |  |  |  | 7,442 |  |  |  | 7,584 | 7,442 | 6,272 |  |
Total liabilities and stockholders' equity | 21,578 |  |  |  | $ 20,429 |  |  |  | 21,578 | 20,429 |  |  |
Operating cash flows: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | 1,670 | 1,512 | 1,795 |  |
Adjustments to reconcile net income to cash provided by operations: |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization of fixed assets and capitalized software |  |  |  |  |  |  |  |  | 311 | 312 | 308 |  |
Amortization of intangible assets |  |  |  |  |  |  |  |  | 183 | 169 | 130 |  |
Adjustments and payments related to contingent consideration liability |  |  |  |  |  |  |  |  | (4) | (24) | (33) |  |
Loss (gain) on deconsolidation of entity |  |  |  |  |  |  |  |  | 11 | 0 | (11) |  |
Benefit for deferred income taxes |  |  |  |  |  |  |  |  | (39) | 396 | 68 |  |
Loss (Gain) on investments |  |  |  |  |  |  |  |  | 12 | (15) | 0 |  |
(Gain) Loss on disposition of assets |  |  |  |  |  |  |  |  | (48) | 10 | 6 |  |
Change in fair value of acquisition-related derivative contracts |  |  |  |  |  |  |  |  | 441 | 0 | 0 |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |
Net receivables |  |  |  |  |  |  |  |  | (78) | (454) | (154) |  |
Other current assets |  |  |  |  |  |  |  |  | 26 | (3) | (9) |  |
Other assets |  |  |  |  |  |  |  |  | (37) | (199) | 34 |  |
Accrued compensation and employee benefits |  |  |  |  |  |  |  |  | 68 | 63 | 2 |  |
Accrued income taxes |  |  |  |  |  |  |  |  | (40) | 37 | (21) |  |
Contributions to pension and other benefit plans in excess of current year expense/credit |  |  |  |  |  |  |  |  | (291) | (457) | (279) |  |
Other liabilities |  |  |  |  |  |  |  |  | 9 | 406 | (97) |  |
Effect of exchange rate changes |  |  |  |  |  |  |  |  | 18 | (96) | 104 |  |
Net cash provided by operations |  |  |  |  |  |  |  |  | 2,428 | $ 1,893 | $ 2,007 |  |
Accounting Standards Update 2014-09 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 14,950 |  |  |  |
Expense: |  |  |  |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  |  |  |  |  |  |  |  | 8,605 |  |  |  |
Other operating expenses |  |  |  |  |  |  |  |  | 3,584 |  |  |  |
Operating expenses |  |  |  |  |  |  |  |  | 12,189 |  |  |  |
Operating income |  |  |  |  |  |  |  |  | 2,761 |  |  |  |
Other net benefits credits |  |  |  |  |  |  |  |  | 215 |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 11 |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (290) |  |  |  |
Investment (loss) income |  |  |  |  |  |  |  |  | (12) |  |  |  |
Acquisition related derivative contracts |  |  |  |  |  |  |  |  | (441) |  |  |  |
Income before income taxes |  |  |  |  |  |  |  |  | 2,244 |  |  |  |
Income tax expense |  |  |  |  |  |  |  |  | 574 |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | 1,670 |  |  |  |
Less: Net income attributable to non-controlling interests |  |  |  |  |  |  |  |  | 20 |  |  |  |
Net income attributable to the Company |  |  |  |  |  |  |  |  | 1,650 |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 1,066 |  |  |  |  |  |  |  | 1,066 |  |  |  |
Net receivables | 4,317 |  |  |  |  |  |  |  | 4,317 |  |  | 68 |
Other current assets | 551 |  |  |  |  |  |  |  | 551 |  |  | 318 |
Total current assets | 5,934 |  |  |  |  |  |  |  | 5,934 |  |  |  |
Goodwill and intangible assets | 11,036 |  |  |  |  |  |  |  | 11,036 |  |  |  |
Fixed assets, net | 701 |  |  |  |  |  |  |  | 701 |  |  |  |
Pension related assets | 1,688 |  |  |  |  |  |  |  | 1,688 |  |  |  |
Deferred tax assets | 680 |  |  |  |  |  |  |  | 680 |  |  | (103) |
Other assets | 1,539 |  |  |  |  |  |  |  | 1,539 |  |  | 226 |
Total assets | 21,578 |  |  |  |  |  |  |  | 21,578 |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | 314 |  |  |  |  |  |  |  | 314 |  |  |  |
Accounts payable and accrued liabilities | 2,234 |  |  |  |  |  |  |  | 2,234 |  |  | 122 |
Accrued compensation and employee benefits | 1,778 |  |  |  |  |  |  |  | 1,778 |  |  |  |
Acquisition related derivatives | 441 |  |  |  |  |  |  |  | 441 |  |  |  |
Accrued income taxes | 157 |  |  |  |  |  |  |  | 157 |  |  |  |
Total current liabilities | 4,924 |  |  |  |  |  |  |  | 4,924 |  |  |  |
Fiduciary liabilities | 5,001 |  |  |  |  |  |  |  | 5,001 |  |  |  |
Less – cash and investments held in a fiduciary capacity | (5,001) |  |  |  |  |  |  |  | (5,001) |  |  |  |
Fiduciary liabilities, net, noncurrent | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Long-term debt | 5,510 |  |  |  |  |  |  |  | 5,510 |  |  |  |
Pension, postretirement and postemployment benefits | 1,911 |  |  |  |  |  |  |  | 1,911 |  |  |  |
Liability for errors and omissions | 287 |  |  |  |  |  |  |  | 287 |  |  |  |
Other liabilities | 1,362 |  |  |  |  |  |  |  | 1,362 |  |  | $ 23 |
Total equity | 7,584 |  |  |  |  |  |  |  | 7,584 |  |  |  |
Total liabilities and stockholders' equity | 21,578 |  |  |  |  |  |  |  | 21,578 |  |  |  |
Operating cash flows: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | 1,670 |  |  |  |
Adjustments to reconcile net income to cash provided by operations: |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization of fixed assets and capitalized software |  |  |  |  |  |  |  |  | 311 |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  |  |  | 183 |  |  |  |
Adjustments and payments related to contingent consideration liability |  |  |  |  |  |  |  |  | (4) |  |  |  |
Loss (gain) on deconsolidation of entity |  |  |  |  |  |  |  |  | 11 |  |  |  |
Benefit for deferred income taxes |  |  |  |  |  |  |  |  | (39) |  |  |  |
Loss (Gain) on investments |  |  |  |  |  |  |  |  | 12 |  |  |  |
(Gain) Loss on disposition of assets |  |  |  |  |  |  |  |  | (48) |  |  |  |
Change in fair value of acquisition-related derivative contracts |  |  |  |  |  |  |  |  | 441 |  |  |  |
Change in fair value of acquisition related derivative contracts |  |  |  |  |  |  |  |  | 193 |  |  |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |
Net receivables |  |  |  |  |  |  |  |  | (78) |  |  |  |
Other current assets |  |  |  |  |  |  |  |  | 26 |  |  |  |
Other assets |  |  |  |  |  |  |  |  | (37) |  |  |  |
Accounts payable and accrued liabilities |  |  |  |  |  |  |  |  | 23 |  |  |  |
Accrued compensation and employee benefits |  |  |  |  |  |  |  |  | 68 |  |  |  |
Accrued income taxes |  |  |  |  |  |  |  |  | (40) |  |  |  |
Contributions to pension and other benefit plans in excess of current year expense/credit |  |  |  |  |  |  |  |  | (291) |  |  |  |
Other liabilities |  |  |  |  |  |  |  |  | 9 |  |  |  |
Effect of exchange rate changes |  |  |  |  |  |  |  |  | 18 |  |  |  |
Net cash provided by operations |  |  |  |  |  |  |  |  | 2,428 |  |  |  |
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2 |  |  |  |
Expense: |  |  |  |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  |  |  |  |  |  |  |  | 17 |  |  |  |
Other operating expenses |  |  |  |  |  |  |  |  | 0 |  |  |  |
Operating expenses |  |  |  |  |  |  |  |  | 17 |  |  |  |
Operating income |  |  |  |  |  |  |  |  | (15) |  |  |  |
Other net benefits credits |  |  |  |  |  |  |  |  | 0 |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 0 |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 0 |  |  |  |
Investment (loss) income |  |  |  |  |  |  |  |  | 0 |  |  |  |
Acquisition related derivative contracts |  |  |  |  |  |  |  |  | 0 |  |  |  |
Income before income taxes |  |  |  |  |  |  |  |  | (15) |  |  |  |
Income tax expense |  |  |  |  |  |  |  |  | (4) |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | (11) |  |  |  |
Less: Net income attributable to non-controlling interests |  |  |  |  |  |  |  |  | 0 |  |  |  |
Net income attributable to the Company |  |  |  |  |  |  |  |  | (11) |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Net receivables | (68) |  |  |  |  |  |  |  | (68) |  |  |  |
Other current assets | (326) |  |  |  |  |  |  |  | (326) |  |  |  |
Total current assets | (394) |  |  |  |  |  |  |  | (394) |  |  |  |
Goodwill and intangible assets | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Fixed assets, net | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Pension related assets | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Deferred tax assets | 107 |  |  |  |  |  |  |  | 107 |  |  |  |
Other assets | (242) |  |  |  |  |  |  |  | (242) |  |  |  |
Total assets | (529) |  |  |  |  |  |  |  | (529) |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Accounts payable and accrued liabilities | (129) |  |  |  |  |  |  |  | (129) |  |  |  |
Accrued compensation and employee benefits | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Acquisition related derivatives | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Accrued income taxes | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Total current liabilities | (129) |  |  |  |  |  |  |  | (129) |  |  |  |
Fiduciary liabilities | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Less – cash and investments held in a fiduciary capacity | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Fiduciary liabilities, net, noncurrent | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Long-term debt | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Pension, postretirement and postemployment benefits | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Liability for errors and omissions | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Other liabilities | (25) |  |  |  |  |  |  |  | (25) |  |  |  |
Total equity | (375) |  |  |  |  |  |  |  | (375) |  |  |  |
Total liabilities and stockholders' equity | (529) |  |  |  |  |  |  |  | (529) |  |  |  |
Operating cash flows: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | (11) |  |  |  |
Adjustments to reconcile net income to cash provided by operations: |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization of fixed assets and capitalized software |  |  |  |  |  |  |  |  | 0 |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  |  |  | 0 |  |  |  |
Adjustments and payments related to contingent consideration liability |  |  |  |  |  |  |  |  | 0 |  |  |  |
Loss (gain) on deconsolidation of entity |  |  |  |  |  |  |  |  | 0 |  |  |  |
Benefit for deferred income taxes |  |  |  |  |  |  |  |  | 0 |  |  |  |
Loss (Gain) on investments |  |  |  |  |  |  |  |  | 0 |  |  |  |
(Gain) Loss on disposition of assets |  |  |  |  |  |  |  |  | 0 |  |  |  |
Change in fair value of acquisition-related derivative contracts |  |  |  |  |  |  |  |  | 0 |  |  |  |
Change in fair value of acquisition related derivative contracts |  |  |  |  |  |  |  |  | 0 |  |  |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |
Net receivables |  |  |  |  |  |  |  |  | 0 |  |  |  |
Other current assets |  |  |  |  |  |  |  |  | 8 |  |  |  |
Other assets |  |  |  |  |  |  |  |  | 12 |  |  |  |
Accounts payable and accrued liabilities |  |  |  |  |  |  |  |  | (7) |  |  |  |
Accrued compensation and employee benefits |  |  |  |  |  |  |  |  | 0 |  |  |  |
Accrued income taxes |  |  |  |  |  |  |  |  | 0 |  |  |  |
Contributions to pension and other benefit plans in excess of current year expense/credit |  |  |  |  |  |  |  |  | 0 |  |  |  |
Other liabilities |  |  |  |  |  |  |  |  | (2) |  |  |  |
Effect of exchange rate changes |  |  |  |  |  |  |  |  | 0 |  |  |  |
Net cash provided by operations |  |  |  |  |  |  |  |  | 0 |  |  |  |
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 14,952 |  |  |  |
Expense: |  |  |  |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  |  |  |  |  |  |  |  | 8,622 |  |  |  |
Other operating expenses |  |  |  |  |  |  |  |  | 3,584 |  |  |  |
Operating expenses |  |  |  |  |  |  |  |  | 12,206 |  |  |  |
Operating income |  |  |  |  |  |  |  |  | 2,746 |  |  |  |
Other net benefits credits |  |  |  |  |  |  |  |  | 215 |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 11 |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (290) |  |  |  |
Investment (loss) income |  |  |  |  |  |  |  |  | (12) |  |  |  |
Acquisition related derivative contracts |  |  |  |  |  |  |  |  | (441) |  |  |  |
Income before income taxes |  |  |  |  |  |  |  |  | 2,229 |  |  |  |
Income tax expense |  |  |  |  |  |  |  |  | 570 |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | 1,659 |  |  |  |
Less: Net income attributable to non-controlling interests |  |  |  |  |  |  |  |  | 20 |  |  |  |
Net income attributable to the Company |  |  |  |  |  |  |  |  | 1,639 |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents | 1,066 |  |  |  |  |  |  |  | 1,066 |  |  |  |
Net receivables | 4,249 |  |  |  |  |  |  |  | 4,249 |  |  |  |
Other current assets | 225 |  |  |  |  |  |  |  | 225 |  |  |  |
Total current assets | 5,540 |  |  |  |  |  |  |  | 5,540 |  |  |  |
Goodwill and intangible assets | 11,036 |  |  |  |  |  |  |  | 11,036 |  |  |  |
Fixed assets, net | 701 |  |  |  |  |  |  |  | 701 |  |  |  |
Pension related assets | 1,688 |  |  |  |  |  |  |  | 1,688 |  |  |  |
Deferred tax assets | 787 |  |  |  |  |  |  |  | 787 |  |  |  |
Other assets | 1,297 |  |  |  |  |  |  |  | 1,297 |  |  |  |
Total assets | 21,049 |  |  |  |  |  |  |  | 21,049 |  |  |  |
LIABILITIES AND EQUITY |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term debt | 314 |  |  |  |  |  |  |  | 314 |  |  |  |
Accounts payable and accrued liabilities | 2,105 |  |  |  |  |  |  |  | 2,105 |  |  |  |
Accrued compensation and employee benefits | 1,778 |  |  |  |  |  |  |  | 1,778 |  |  |  |
Acquisition related derivatives | 441 |  |  |  |  |  |  |  | 441 |  |  |  |
Accrued income taxes | 157 |  |  |  |  |  |  |  | 157 |  |  |  |
Total current liabilities | 4,795 |  |  |  |  |  |  |  | 4,795 |  |  |  |
Fiduciary liabilities | 5,001 |  |  |  |  |  |  |  | 5,001 |  |  |  |
Less – cash and investments held in a fiduciary capacity | (5,001) |  |  |  |  |  |  |  | (5,001) |  |  |  |
Fiduciary liabilities, net, noncurrent | 0 |  |  |  |  |  |  |  | 0 |  |  |  |
Long-term debt | 5,510 |  |  |  |  |  |  |  | 5,510 |  |  |  |
Pension, postretirement and postemployment benefits | 1,911 |  |  |  |  |  |  |  | 1,911 |  |  |  |
Liability for errors and omissions | 287 |  |  |  |  |  |  |  | 287 |  |  |  |
Other liabilities | 1,337 |  |  |  |  |  |  |  | 1,337 |  |  |  |
Total equity | 7,209 |  |  |  |  |  |  |  | 7,209 |  |  |  |
Total liabilities and stockholders' equity | $ 21,049 |  |  |  |  |  |  |  | 21,049 |  |  |  |
Operating cash flows: |  |  |  |  |  |  |  |  |  |  |  |  |
Net income before non-controlling interests |  |  |  |  |  |  |  |  | 1,659 |  |  |  |
Adjustments to reconcile net income to cash provided by operations: |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization of fixed assets and capitalized software |  |  |  |  |  |  |  |  | 311 |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  |  |  | 183 |  |  |  |
Adjustments and payments related to contingent consideration liability |  |  |  |  |  |  |  |  | (4) |  |  |  |
Loss (gain) on deconsolidation of entity |  |  |  |  |  |  |  |  | 11 |  |  |  |
Benefit for deferred income taxes |  |  |  |  |  |  |  |  | (39) |  |  |  |
Loss (Gain) on investments |  |  |  |  |  |  |  |  | 12 |  |  |  |
(Gain) Loss on disposition of assets |  |  |  |  |  |  |  |  | (48) |  |  |  |
Change in fair value of acquisition-related derivative contracts |  |  |  |  |  |  |  |  | 441 |  |  |  |
Change in fair value of acquisition related derivative contracts |  |  |  |  |  |  |  |  | 193 |  |  |  |
Changes in assets and liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |
Net receivables |  |  |  |  |  |  |  |  | (78) |  |  |  |
Other current assets |  |  |  |  |  |  |  |  | 34 |  |  |  |
Other assets |  |  |  |  |  |  |  |  | (25) |  |  |  |
Accounts payable and accrued liabilities |  |  |  |  |  |  |  |  | 16 |  |  |  |
Accrued compensation and employee benefits |  |  |  |  |  |  |  |  | 68 |  |  |  |
Accrued income taxes |  |  |  |  |  |  |  |  | (40) |  |  |  |
Contributions to pension and other benefit plans in excess of current year expense/credit |  |  |  |  |  |  |  |  | (291) |  |  |  |
Other liabilities |  |  |  |  |  |  |  |  | 7 |  |  |  |
Effect of exchange rate changes |  |  |  |  |  |  |  |  | 18 |  |  |  |
Net cash provided by operations |  |  |  |  |  |  |  |  | $ 2,428 |  |  |  |

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