| Revenue | 23,432.9a | 20,760.8a | 20,862.1a |
| Operating expenses | — | — | — |
| Compensation and benefits | -10,994.7a | -9,770.7a | -10,010.8a |
| Operating, administrative and other | -11,291.2a | -10,074.5a | -9,650.3a |
| Depreciation and amortization | -255.8a | -238.4a | -228.1a |
| Restructuring and acquisition charges | -23.1a | -100.7a | -104.8a |
| Total operating expenses | -22,564.8a | -20,184.3a | -19,994a |
| Operating income | 868.1a | 576.5a | 868.1a |
| Interest expense, net of interest income | -136.9a | -135.4a | -75.2a |
| Equity (losses) earnings | -70.8a | -194.1a | 51a |
| Other income | 18.9a | 4.9a | 150.3a |
| Income before income taxes and noncontrolling interest | 679.3a | 251.9a | 994.2a |
| Income tax provision | -132.5a | -25.7a | -200.8a |
| Net income | 546.8a | 226.2a | 793.4a |
| Net income attributable to noncontrolling interest | 0a | 0.8a | 138.9a |
| Net income attributable to common shareholders | 546.8a | 225.4a | 654.5a |