| Year Ended December 31, | |||||
|---|---|---|---|---|---|
| (in millions, except as noted) | 2014 | 2013 | 2012 | 2011 | 2010 |
| Net income available to common stockholders per diluted share | |||||
| Operating earnings per diluted share | $4.41 | $3.55 | $2.69 | $2.61 | $2.45 |
| Net realized capital gains (losses) | (0.34) | (0.60) | 0.14 | (0.44) | (0.58) |
| Other after-tax adjustments | (0.36) | — | (0.25) | (0.26) | 0.05 |
| Adjustment for redeemable noncontrolling interest | (0.06) | — | — | — | — |
| Net income available to common stockholders per diluted share | $3.65 | $2.95 | $2.58 | $1.91 | $1.92 |
| Net income available to common stockholders | |||||
| Operating earnings | $1,317.9 | $1,059.9 | $808.8 | $829.3 | $792.9 |
| Net realized capital gains (losses) | (100.5) | (179.1) | 39.0 | (141.7) | (189.0) |
| Other after-tax adjustments | (106.3) | (1.1) | (74.2) | (82.3) | 15.7 |
| Net income available to common stockholders | $1,111.1 | $879.7 | $773.6 | $605.3 | $619.6 |
| Stockholders' equity attributable to Principal Financial Group, Inc. | |||||
| Stockholders' equity attributable to Principal Financial Group, Inc. x-OCI available to common stockholders |
$9,591.6 | $8,959.0 | $8,501.1 | $8,139.0 | $8,236.1 |
| Net unrealized capital gains (losses) | 1,148.3 | 700.6 | 1,235.7 | 728.4 | 465.2 |
| Foreign currency translation | (686.8) | (361.5) | (106.9) | (95.9) | 34.5 |
| Net unrecognized postretirement benefit obligations | (411.1) | (155.9) | (488.5) | (361.1) | (188.2) |
| Preferred stock, at par | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Paid-in capital—preferred stock | 541.9 | 541.9 | 541.9 | 541.9 | 541.9 |
| Stockholders’ equity attributable to Principal Financial Group, Inc. | $10,184.0 | $9,684.2 | $9,683.4 | $8,952.4 | $9,089.6 |
| Net income ROE available to common stockholders (including OCI) | |||||
| Operating earnings ROE (x-OCI) | 14.2% | 12.1% | 9.7% | 10.1% | 9.9% |
| Net realized capital gains (losses) | (1.1)% | (2.0)% | 0.5% | (1.7)% | (2.4)% |
| Other after-tax adjustments | (1.1)% | 0.0% | (0.9)% | (1.0)% | 0.2% |
| Net income ROE available to common stockholders (x-OCI) | 12.0% | 10.1% | 9.3% | 7.4% | 7.7% |
| Net unrealized capital gains (losses) | (1.1)% | (1.0)% | (1.0)% | (0.5)% | 0.1% |
| Foreign currency translation | 0.6% | 0.2% | 0.1% | 0.0% | 0.0% |
| Net unrecognized postretirement benefit obligations | 0.3% | 0.3% | 0.4% | 0.2% | 0.3% |
| Net income ROE available to common stockholders (including OCI) | 11.8% | 9.6% | 8.8% | 7.1% | 8.1% |
