XML 53 R41.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Guarantee of Registered Securities (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Guarantee of Registered Securities [Abstract] |
Condensed Consolidating Statements of Income | Condensed Consolidating Statement of Income
|  | Three months ended September 30, 2018
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Revenue |  |  |  |  |  |  |  |  |  |
Total revenue |  | $ | — |  |  | $ | — |  |  | $ | 2,349 |  |  | $ | — |  |  | $ | 2,349 |
Expenses |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  | 13 |  |  | 3 |  |  | 1,376 |  |  | — |  |  | 1,392 |
Information technology |  | — |  |  | — |  |  | 125 |  |  | — |  |  | 125 |
Premises |  | — |  |  | — |  |  | 94 |  |  | — |  |  | 94 |
Depreciation of fixed assets |  | — |  |  | — |  |  | 40 |  |  | — |  |  | 40 |
Amortization and impairment of intangible assets |  | — |  |  | — |  |  | 100 |  |  | — |  |  | 100 |
Other general expenses |  | — |  |  | (7 | ) |  | 343 |  |  | — |  |  | 336 |
Total operating expenses |  | 13 |  |  | (4 | ) |  | 2,078 |  |  | — |  |  | 2,087 |
Operating income (loss) |  | (13 | ) |  | 4 |  |  | 271 |  |  | — |  |  | 262 |
Interest income |  | — |  |  | 15 |  |  | — |  |  | (15 | ) |  | — |
Interest expense |  | (52 | ) |  | (26 | ) |  | (6 | ) |  | 15 |  |  | (69 | )
Intercompany interest income (expense) |  | 4 |  |  | (128 | ) |  | 124 |  |  | — |  |  | — |
Intercompany other income (expense) |  | 245 |  |  | (251 | ) |  | 6 |  |  | — |  |  | — |
Other income (expense) |  | (5 | ) |  | (3 | ) |  | 7 |  |  | 2 |  |  | 1 |
Income (loss) from continuing operations before income taxes |  | 179 |  |  | (389 | ) |  | 402 |  |  | 2 |  |  | 194 |
Income tax expense (benefit) |  | (8 | ) |  | (67 | ) |  | 114 |  |  | — |  |  | 39 |
Net income (loss) from continuing operations |  | 187 |  |  | (322 | ) |  | 288 |  |  | 2 |  |  | 155 |
Net income (loss) from discontinued operations |  | — |  |  | — |  |  | (2 | ) |  | — |  |  | (2 | )
Net income (loss) before equity in earnings of subsidiaries |  | 187 |  |  | (322 | ) |  | 286 |  |  | 2 |  |  | 153 |
Equity in earnings of subsidiaries, net of tax |  | (42 | ) |  | (42 | ) |  | (364 | ) |  | 448 |  |  | — |
Net income (loss) |  | 145 |  |  | (364 | ) |  | (78 | ) |  | 450 |  |  | 153 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 6 |  |  | — |  |  | 6 |
Net income (loss) attributable to Aon shareholders |  | $ | 145 |  |  | $ | (364 | ) |  | $ | (84 | ) |  | $ | 450 |  |  | $ | 147 |
Condensed Consolidating Statement of Income
|  | Three months ended September 30, 2017
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Revenue |  |  |  |  |  |  |  |  |  |
Total revenue |  | $ | — |  |  | $ | — |  |  | $ | 2,340 |  |  | $ | — |  |  | $ | 2,340 |
Expenses |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  | 25 |  |  | 18 |  |  | 1,385 |  |  | — |  |  | 1,428 |
Information technology |  | — |  |  | — |  |  | 109 |  |  | — |  |  | 109 |
Premises |  | — |  |  | — |  |  | 89 |  |  | — |  |  | 89 |
Depreciation of fixed assets |  | — |  |  | — |  |  | 40 |  |  | — |  |  | 40 |
Amortization and impairment of intangible assets |  | — |  |  | — |  |  | 101 |  |  | — |  |  | 101 |
Other general expenses |  | 1 |  |  | 1 |  |  | 315 |  |  | — |  |  | 317 |
Total operating expenses |  | 26 |  |  | 19 |  |  | 2,039 |  |  | — |  |  | 2,084 |
Operating income (loss) |  | (26 | ) |  | (19 | ) |  | 301 |  |  | — |  |  | 256 |
Interest income |  | — |  |  | 18 |  |  | — |  |  | (8 | ) |  | 10 |
Interest expense |  | (53 | ) |  | (24 | ) |  | (1 | ) |  | 8 |  |  | (70 | )
Intercompany interest income (expense) |  | 3 |  |  | (135 | ) |  | 132 |  |  | — |  |  | — |
Intercompany other income (expense) |  | 291 |  |  | (271 | ) |  | (20 | ) |  | — |  |  | — |
Other income (expense) |  | (2 | ) |  | 12 |  |  | (6 | ) |  | — |  |  | 4 |
Income (loss) from continuing operations before income taxes |  | 213 |  |  | (419 | ) |  | 406 |  |  | — |  |  | 200 |
Income tax expense (benefit) |  | (8 | ) |  | (81 | ) |  | 93 |  |  | — |  |  | 4 |
Net income (loss) from continuing operations |  | 221 |  |  | (338 | ) |  | 313 |  |  | — |  |  | 196 |
Net income (loss) from discontinued operations |  | — |  |  | — |  |  | (4 | ) |  | — |  |  | (4 | )
Net income (loss) before equity in earnings of subsidiaries |  | 221 |  |  | (338 | ) |  | 309 |  |  | — |  |  | 192 |
Equity in earnings of subsidiaries, net of tax |  | (36 | ) |  | 122 |  |  | (216 | ) |  | 130 |  |  | — |
Net income (loss) |  | 185 |  |  | (216 | ) |  | 93 |  |  | 130 |  |  | 192 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 7 |  |  | — |  |  | 7 |
Net income (loss) attributable to Aon shareholders |  | $ | 185 |  |  | $ | (216 | ) |  | $ | 86 |  |  | $ | 130 |  |  | $ | 185 |
Condensed Consolidating Statement of Income
|  | Nine months ended September 30, 2018
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Revenue |  |  |  |  |  |  |  |  |  |
Total revenue |  | $ | — |  |  | $ | — |  |  | $ | 8,000 |  |  | $ | — |  |  | $ | 8,000 |
Expenses |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  | 47 |  |  | 5 |  |  | 4,450 |  |  | — |  |  | 4,502 |
Information technology |  | — |  |  | — |  |  | 363 |  |  | — |  |  | 363 |
Premises |  | — |  |  | — |  |  | 283 |  |  | — |  |  | 283 |
Depreciation of fixed assets |  | — |  |  | — |  |  | 126 |  |  | — |  |  | 126 |
Amortization and impairment of intangible assets |  | — |  |  | — |  |  | 492 |  |  | — |  |  | 492 |
Other general expenses |  | 3 |  |  | 71 |  |  | 1,115 |  |  | — |  |  | 1,189 |
Total operating expenses |  | 50 |  |  | 76 |  |  | 6,829 |  |  | — |  |  | 6,955 |
Operating income (loss) |  | (50 | ) |  | (76 | ) |  | 1,171 |  |  | — |  |  | 1,045 |
Interest income |  | — |  |  | 44 |  |  | — |  |  | (39 | ) |  | 5 |
Interest expense |  | (149 | ) |  | (75 | ) |  | (23 | ) |  | 39 |  |  | (208 | )
Intercompany interest income (expense) |  | 11 |  |  | (385 | ) |  | 374 |  |  | — |  |  | — |
Intercompany other income (expense) |  | 113 |  |  | (259 | ) |  | 146 |  |  | — |  |  | — |
Other income (expense) |  | 4 |  |  | (29 | ) |  | 21 |  |  | (13 | ) |  | (17 | )
Income (loss) from continuing operations before income taxes |  | (71 | ) |  | (780 | ) |  | 1,689 |  |  | (13 | ) |  | 825 |
Income tax expense (benefit) |  | (27 | ) |  | (144 | ) |  | 180 |  |  | — |  |  | 9 |
Net income (loss) from continuing operations |  | (44 | ) |  | (636 | ) |  | 1,509 |  |  | (13 | ) |  | 816 |
Net income (loss) from discontinued operations |  | — |  |  | — |  |  | 5 |  |  | — |  |  | 5 |
Net income (loss) before equity in earnings of subsidiaries |  | (44 | ) |  | (636 | ) |  | 1,514 |  |  | (13 | ) |  | 821 |
Equity in earnings of subsidiaries, net of tax |  | 846 |  |  | 868 |  |  | 232 |  |  | (1,946 | ) |  | — |
Net income (loss) |  | 802 |  |  | 232 |  |  | 1,746 |  |  | (1,959 | ) |  | 821 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 32 |  |  | — |  |  | 32 |
Net income (loss) attributable to Aon shareholders |  | $ | 802 |  |  | $ | 232 |  |  | $ | 1,714 |  |  | $ | (1,959 | ) |  | $ | 789 |
Condensed Consolidating Statement of Income
|  | Nine months ended September 30, 2017
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Revenue |  |  |  |  |  |  |  |  |  |
Total revenue |  | $ | — |  |  | $ | — |  |  | $ | 7,089 |  |  | $ | — |  |  | $ | 7,089 |
Expenses |  |  |  |  |  |  |  |  |  |
Compensation and benefits |  | 85 |  |  | 24 |  |  | 4,254 |  |  | — |  |  | 4,363 |
Information technology |  | — |  |  | — |  |  | 295 |  |  | — |  |  | 295 |
Premises |  | — |  |  | — |  |  | 259 |  |  | — |  |  | 259 |
Depreciation of fixed assets |  | — |  |  | — |  |  | 148 |  |  | — |  |  | 148 |
Amortization and impairment of intangible assets |  | — |  |  | — |  |  | 604 |  |  | — |  |  | 604 |
Other general expenses |  | 10 |  |  | (3 | ) |  | 949 |  |  | — |  |  | 956 |
Total operating expenses |  | 95 |  |  | 21 |  |  | 6,509 |  |  | — |  |  | 6,625 |
Operating income (loss) |  | (95 | ) |  | (21 | ) |  | 580 |  |  | — |  |  | 464 |
Interest income |  | — |  |  | 35 |  |  | — |  |  | (15 | ) |  | 20 |
Interest expense |  | (144 | ) |  | (71 | ) |  | (11 | ) |  | 15 |  |  | (211 | )
Intercompany interest income (expense) |  | 10 |  |  | (407 | ) |  | 397 |  |  | — |  |  | — |
Intercompany other income (expense) |  | 189 |  |  | (280 | ) |  | 91 |  |  | — |  |  | — |
Other income (expense) |  | (25 | ) |  | 15 |  |  | (2 | ) |  | 18 |  |  | 6 |
Income (loss) from continuing operations before income taxes |  | (65 | ) |  | (729 | ) |  | 1,055 |  |  | 18 |  |  | 279 |
Income tax expense (benefit) |  | (30 | ) |  | (198 | ) |  | 89 |  |  | — |  |  | (139 | )
Net income (loss) from continuing operations |  | (35 | ) |  | (531 | ) |  | 966 |  |  | 18 |  |  | 418 |
Net income (loss) from discontinued operations |  | — |  |  | — |  |  | 857 |  |  | — |  |  | 857 |
Net income (loss) before equity in earnings of subsidiaries |  | (35 | ) |  | (531 | ) |  | 1,823 |  |  | 18 |  |  | 1,275 |
Equity in earnings of subsidiaries, net of tax |  | 1,262 |  |  | 1,028 |  |  | 497 |  |  | (2,787 | ) |  | — |
Net income (loss) |  | 1,227 |  |  | 497 |  |  | 2,320 |  |  | (2,769 | ) |  | 1,275 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 30 |  |  | — |  |  | 30 |
Net income (loss) attributable to Aon shareholders |  | $ | 1,227 |  |  | $ | 497 |  |  | $ | 2,290 |  |  | $ | (2,769 | ) |  | $ | 1,245 |
Condensed Consolidating Statements of Comprehensive Income | Condensed Consolidating Statement of Comprehensive Income
|  | Three months ended September 30, 2018
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Net income (loss) |  | $ | 145 |  |  | $ | (364 | ) |  | $ | (78 | ) |  | $ | 450 |  |  | $ | 153 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 6 |  |  | — |  |  | 6 |
Net income (loss) attributable to Aon shareholders |  | 145 |  |  | (364 | ) |  | (84 | ) |  | 450 |  |  | 147 |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments |  | — |  |  | (2 | ) |  | 3 |  |  | — |  |  | 1 |
Foreign currency translation adjustments |  | — |  |  | — |  |  | (48 | ) |  | (2 | ) |  | (50 | )
Postretirement benefit obligation |  | — |  |  | 12 |  |  | (74 | ) |  | — |  |  | (62 | )
Total other comprehensive income (loss) |  | — |  |  | 10 |  |  | (119 | ) |  | (2 | ) |  | (111 | )
Equity in other comprehensive income (loss) of subsidiaries, net of tax |  | (106 | ) |  | (134 | ) |  | (124 | ) |  | 364 |  |  | — |
Less: Other comprehensive income (loss) attributable to noncontrolling interests |  | — |  |  | — |  |  | (3 | ) |  | — |  |  | (3 | )
Total other comprehensive income (loss) attributable to Aon shareholders |  | (106 | ) |  | (124 | ) |  | (240 | ) |  | 362 |  |  | (108 | )
Comprehensive income (loss) attributable to Aon shareholders |  | $ | 39 |  |  | $ | (488 | ) |  | $ | (324 | ) |  | $ | 812 |  |  | $ | 39 |
Condensed Consolidating Statement of Comprehensive Income
|  | Three months ended September 30, 2017
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Net income (loss) |  | $ | 185 |  |  | $ | (216 | ) |  | $ | 93 |  |  | $ | 130 |  |  | $ | 192 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 7 |  |  | — |  |  | 7 |
Net income (loss) attributable to Aon shareholders |  | 185 |  |  | (216 | ) |  | 86 |  |  | 130 |  |  | 185 |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments |  | — |  |  | 3 |  |  | 8 |  |  | — |  |  | 11 |
Foreign currency translation adjustments |  | — |  |  | — |  |  | 243 |  |  | — |  |  | 243 |
Postretirement benefit obligation |  | — |  |  | 7 |  |  | 11 |  |  | — |  |  | 18 |
Total other comprehensive income (loss) |  | — |  |  | 10 |  |  | 262 |  |  | — |  |  | 272 |
Equity in other comprehensive income (loss) of subsidiaries, net of tax |  | 265 |  |  | 245 |  |  | 255 |  |  | (765 | ) |  | — |
Less: Other comprehensive income (loss) attributable to noncontrolling interests |  | — |  |  | — |  |  | 7 |  |  | — |  |  | 7 |
Total other comprehensive income (loss) attributable to Aon shareholders |  | 265 |  |  | 255 |  |  | 510 |  |  | (765 | ) |  | 265 |
Comprehensive income (loss) attributable to Aon shareholders |  | $ | 450 |  |  | $ | 39 |  |  | $ | 596 |  |  | $ | (635 | ) |  | $ | 450 |
Condensed Consolidating Statement of Comprehensive Income
|  | Nine months ended September 30, 2018
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Net income (loss) |  | $ | 802 |  |  | $ | 232 |  |  | $ | 1,746 |  |  | $ | (1,959 | ) |  | $ | 821 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 32 |  |  | — |  |  | 32 |
Net income (loss) attributable to Aon shareholders |  | 802 |  |  | 232 |  |  | 1,714 |  |  | (1,959 | ) |  | 789 |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments |  | — |  |  | (3 | ) |  | 17 |  |  | — |  |  | 14 |
Foreign currency translation adjustments |  | — |  |  | — |  |  | (276 | ) |  | 13 |  |  | (263 | )
Postretirement benefit obligation |  | — |  |  | 34 |  |  | 74 |  |  | — |  |  | 108 |
Total other comprehensive income (loss) |  | — |  |  | 31 |  |  | (185 | ) |  | 13 |  |  | (141 | )
Equity in other comprehensive income (loss) of subsidiaries, net of tax |  | (148 | ) |  | (194 | ) |  | (163 | ) |  | 505 |  |  | — |
Less: Other comprehensive income (loss) attributable to noncontrolling interests |  | — |  |  | — |  |  | (6 | ) |  | — |  |  | (6 | )
Total other comprehensive income (loss) attributable to Aon shareholders |  | (148 | ) |  | (163 | ) |  | (342 | ) |  | 518 |  |  | (135 | )
Comprehensive income (loss) attributable to Aon shareholders |  | $ | 654 |  |  | $ | 69 |  |  | $ | 1,372 |  |  | $ | (1,441 | ) |  | $ | 654 |
Condensed Consolidating Statement of Comprehensive Income
|  | Nine months ended September 30, 2017
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Net income (loss) |  | $ | 1,227 |  |  | $ | 497 |  |  | $ | 2,320 |  |  | $ | (2,769 | ) |  | $ | 1,275 |
Less: Net income attributable to noncontrolling interests |  | — |  |  | — |  |  | 30 |  |  | — |  |  | 30 |
Net income (loss) attributable to Aon shareholders |  | 1,227 |  |  | 497 |  |  | 2,290 |  |  | (2,769 | ) |  | 1,245 |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments |  | — |  |  | 3 |  |  | 10 |  |  | — |  |  | 13 |
Foreign currency translation adjustments |  | — |  |  | — |  |  | 452 |  |  | (18 | ) |  | 434 |
Postretirement benefit obligation |  | — |  |  | 23 |  |  | 33 |  |  | — |  |  | 56 |
Total other comprehensive income (loss) |  | — |  |  | 26 |  |  | 495 |  |  | (18 | ) |  | 503 |
Equity in other comprehensive income (loss) of subsidiaries, net of tax |  | 518 |  |  | 480 |  |  | 506 |  |  | (1,504 | ) |  | — |
Less: Other comprehensive income (loss) attributable to noncontrolling interests |  | — |  |  | — |  |  | 3 |  |  | — |  |  | 3 |
Total other comprehensive income (loss) attributable to Aon shareholders |  | 518 |  |  | 506 |  |  | 998 |  |  | (1,522 | ) |  | 500 |
Comprehensive income (loss) attributable to Aon shareholders |  | $ | 1,745 |  |  | $ | 1,003 |  |  | $ | 3,288 |  |  | $ | (4,291 | ) |  | $ | 1,745 |
Condensed Consolidating Statements of Financial Position | Condensed Consolidating Statement of Financial Position
|  | As of September 30, 2018
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | — |  |  | $ | 1,927 |  |  | $ | 400 |  |  | $ | (1,843 | ) |  | $ | 484 |
Short-term investments |  | — |  |  | 47 |  |  | 120 |  |  | — |  |  | 167 |
Receivables, net |  | — |  |  | — |  |  | 2,656 |  |  | — |  |  | 2,656 |
Fiduciary assets |  | — |  |  | — |  |  | 9,314 |  |  | — |  |  | 9,314 |
Current intercompany receivables |  | 165 |  |  | 4,175 |  |  | 12,173 |  |  | (16,513 | ) |  | — |
Other current assets |  | — |  |  | 15 |  |  | 712 |  |  | — |  |  | 727 |
Total current assets |  | 165 |  |  | 6,164 |  |  | 25,375 |  |  | (18,356 | ) |  | 13,348 |
Goodwill |  | — |  |  | — |  |  | 8,282 |  |  | — |  |  | 8,282 |
Intangible assets, net |  | — |  |  | — |  |  | 1,260 |  |  | — |  |  | 1,260 |
Fixed assets, net |  | — |  |  | — |  |  | 594 |  |  | — |  |  | 594 |
Deferred tax assets |  | 99 |  |  | 419 |  |  | 153 |  |  | (195 | ) |  | 476 |
Non-current intercompany receivables |  | 412 |  |  | 260 |  |  | 8,256 |  |  | (8,928 | ) |  | — |
Prepaid pension |  | — |  |  | 6 |  |  | 1,202 |  |  | — |  |  | 1,208 |
Other non-current assets |  | 1 |  |  | 37 |  |  | 396 |  |  | — |  |  | 434 |
Investment in subsidiary |  | 10,086 |  |  | 18,858 |  |  | (371 | ) |  | (28,573 | ) |  | — |
Total assets |  | $ | 10,763 |  |  | $ | 25,744 |  |  | $ | 45,147 |  |  | $ | (56,052 | ) |  | $ | 25,602 |
Liabilities and equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities |  | $ | 1,516 |  |  | $ | 66 |  |  | $ | 1,861 |  |  | $ | (1,843 | ) |  | $ | 1,600 |
Short-term debt and current portion of long-term debt |  | 540 |  |  | 200 |  |  | 1 |  |  | — |  |  | 741 |
Fiduciary liabilities |  | — |  |  | — |  |  | 9,314 |  |  | — |  |  | 9,314 |
Current intercompany payables |  | 193 |  |  | 14,605 |  |  | 1,715 |  |  | (16,513 | ) |  | — |
Other current liabilities |  | — |  |  | 64 |  |  | 924 |  |  | — |  |  | 988 |
Total current liabilities |  | 2,249 |  |  | 14,935 |  |  | 13,815 |  |  | (18,356 | ) |  | 12,643 |
Long-term debt |  | 4,249 |  |  | 1,416 |  |  | — |  |  | — |  |  | 5,665 |
Deferred tax liabilities |  | — |  |  | — |  |  | 468 |  |  | (195 | ) |  | 273 |
Pension, other postretirement and postemployment liabilities |  | — |  |  | 1,238 |  |  | 365 |  |  | — |  |  | 1,603 |
Non-current intercompany payables |  | — |  |  | 8,421 |  |  | 507 |  |  | (8,928 | ) |  | — |
Other non-current liabilities |  | 3 |  |  | 105 |  |  | 982 |  |  | — |  |  | 1,090 |
Total liabilities |  | 6,501 |  |  | 26,115 |  |  | 16,137 |  |  | (27,479 | ) |  | 21,274 |
Total Aon shareholders’ equity |  | 4,262 |  |  | (371 | ) |  | 28,944 |  |  | (28,573 | ) |  | 4,262 |
Noncontrolling interests |  | — |  |  | — |  |  | 66 |  |  | — |  |  | 66 |
Total equity |  | 4,262 |  |  | (371 | ) |  | 29,010 |  |  | (28,573 | ) |  | 4,328 |
Total liabilities and equity |  | $ | 10,763 |  |  | $ | 25,744 |  |  | $ | 45,147 |  |  | $ | (56,052 | ) |  | $ | 25,602 |
Condensed Consolidating Statement of Financial Position
|  | As of December 31, 2017
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ | 1 |  |  | $ | 2,524 |  |  | $ | 793 |  |  | $ | (2,562 | ) |  | $ | 756 |
Short-term investments |  | — |  |  | 355 |  |  | 174 |  |  | — |  |  | 529 |
Receivables, net |  | — |  |  | 2 |  |  | 2,476 |  |  | — |  |  | 2,478 |
Fiduciary assets |  | — |  |  | — |  |  | 9,625 |  |  | — |  |  | 9,625 |
Current intercompany receivables |  | 165 |  |  | 1,046 |  |  | 10,824 |  |  | (12,035 | ) |  | — |
Other current assets |  | 1 |  |  | 29 |  |  | 259 |  |  | — |  |  | 289 |
Total current assets |  | 167 |  |  | 3,956 |  |  | 24,151 |  |  | (14,597 | ) |  | 13,677 |
Goodwill |  | — |  |  | — |  |  | 8,358 |  |  | — |  |  | 8,358 |
Intangible assets, net |  | — |  |  | — |  |  | 1,733 |  |  | — |  |  | 1,733 |
Fixed assets, net |  | — |  |  | — |  |  | 564 |  |  | — |  |  | 564 |
Deferred tax assets |  | 99 |  |  | 396 |  |  | 143 |  |  | (249 | ) |  | 389 |
Non-current intercompany receivables |  | 414 |  |  | 261 |  |  | 8,232 |  |  | (8,907 | ) |  | — |
Prepaid pension |  | — |  |  | 6 |  |  | 1,054 |  |  | — |  |  | 1,060 |
Other non-current assets |  | 1 |  |  | 35 |  |  | 271 |  |  | — |  |  | 307 |
Investment in subsidiary |  | 8,884 |  |  | 17,909 |  |  | 19 |  |  | (26,812 | ) |  | — |
Total assets |  | $ | 9,565 |  |  | $ | 22,563 |  |  | $ | 44,525 |  |  | $ | (50,565 | ) |  | $ | 26,088 |
Liabilities and equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities |  | $ | 574 |  |  | $ | 36 |  |  | $ | 3,913 |  |  | $ | (2,562 | ) |  | $ | 1,961 |
Short-term debt and current portion of long-term debt |  | — |  |  | — |  |  | 299 |  |  | — |  |  | 299 |
Fiduciary liabilities |  | — |  |  | — |  |  | 9,625 |  |  | — |  |  | 9,625 |
Current intercompany payables |  | 130 |  |  | 11,149 |  |  | 756 |  |  | (12,035 | ) |  | — |
Other current liabilities |  | 16 |  |  | 64 |  |  | 790 |  |  | — |  |  | 870 |
Total current liabilities |  | 720 |  |  | 11,249 |  |  | 15,383 |  |  | (14,597 | ) |  | 12,755 |
Long-term debt |  | 4,251 |  |  | 1,415 |  |  | 1 |  |  | — |  |  | 5,667 |
Deferred tax liabilities |  | — |  |  | — |  |  | 376 |  |  | (249 | ) |  | 127 |
Pension, other postretirement and postemployment liabilities |  | — |  |  | 1,391 |  |  | 398 |  |  | — |  |  | 1,789 |
Non-current intercompany payables |  | — |  |  | 8,398 |  |  | 509 |  |  | (8,907 | ) |  | — |
Other non-current liabilities |  | 11 |  |  | 91 |  |  | 1,000 |  |  | — |  |  | 1,102 |
Total liabilities |  | 4,982 |  |  | 22,544 |  |  | 17,667 |  |  | (23,753 | ) |  | 21,440 |
Total Aon shareholders’ equity |  | 4,583 |  |  | 19 |  |  | 26,793 |  |  | (26,812 | ) |  | 4,583 |
Noncontrolling interests |  | — |  |  | — |  |  | 65 |  |  | — |  |  | 65 |
Total equity |  | 4,583 |  |  | 19 |  |  | 26,858 |  |  | (26,812 | ) |  | 4,648 |
Total liabilities and equity |  | $ | 9,565 |  |  | $ | 22,563 |  |  | $ | 44,525 |  |  | $ | (50,565 | ) |  | $ | 26,088 |
Condensed Consolidating Statements of Cash Flows | Condensed Consolidating Statement of Cash Flows
|  | Nine months ended September 30, 2018
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash provided by (used for) operating activities - continuing operations |  | $ | (143 | ) |  | $ | 479 |  |  | $ | 2,258 |  |  | $ | (1,619 | ) |  | $ | 975 |
Cash provided by operating activities - discontinued operations |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Cash provided by (used for) operating activities |  | (143 | ) |  | 479 |  |  | 2,258 |  |  | (1,619 | ) |  | 975 |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |
Proceeds from investments |  | — |  |  | 16 |  |  | 14 |  |  | — |  |  | 30 |
Payments for investments |  | (12 | ) |  | (36 | ) |  | (29 | ) |  | 12 |  |  | (65 | )
Net sales (purchases) of short-term investments - non-fiduciary |  | — |  |  | 308 |  |  | 48 |  |  | — |  |  | 356 |
Acquisition of businesses, net of cash acquired |  | — |  |  | — |  |  | (50 | ) |  |  |  |  | (50 | )
Sale of businesses, net of cash sold |  | — |  |  | — |  |  | (8 | ) |  | — |  |  | (8 | )
Capital expenditures |  | — |  |  | — |  |  | (179 | ) |  | — |  |  | (179 | )
Cash provided by (used for) investing activities - continuing operations |  | (12 | ) |  | 288 |  |  | (204 | ) |  | 12 |  |  | 84 |
Cash used for investing activities - discontinued operations |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Cash provided by (used for) investing activities |  | (12 | ) |  | 288 |  |  | (204 | ) |  | 12 |  |  | 84 |
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |
Share repurchase |  | (1,272 | ) |  | — |  |  | — |  |  | — |  |  | (1,272 | )
Advances from (to) affiliates |  | 1,292 |  |  | (1,564 | ) |  | (2,054 | ) |  | 2,326 |  |  | — |
Issuance of shares for employee benefit plans |  | (139 | ) |  | — |  |  | — |  |  | — |  |  | (139 | )
Issuance of debt |  | 1,258 |  |  | 2,701 |  |  | 1 |  |  | — |  |  | 3,960 |
Repayment of debt |  | (700 | ) |  | (2,501 | ) |  | (297 | ) |  | — |  |  | (3,498 | )
Cash dividends to shareholders |  | (285 | ) |  | — |  |  | — |  |  | — |  |  | (285 | )
Noncontrolling interests and other financing activities |  | — |  |  | — |  |  | (21 | ) |  | — |  |  | (21 | )
Cash provided by (used for) financing activities - continuing operations |  | 154 |  |  | (1,364 | ) |  | (2,371 | ) |  | 2,326 |  |  | (1,255 | )
Cash used for financing activities - discontinued operations |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Cash provided by (used for) financing activities |  | 154 |  |  | (1,364 | ) |  | (2,371 | ) |  | 2,326 |  |  | (1,255 | )
Effect of exchange rates on cash and cash equivalents |  | — |  |  | — |  |  | (76 | ) |  | — |  |  | (76 | )
Net increase (decrease) in cash and cash equivalents |  | (1 | ) |  | (597 | ) |  | (393 | ) |  | 719 |  |  | (272 | )
Cash and cash equivalents at beginning of period |  | 1 |  |  | 2,524 |  |  | 793 |  |  | (2,562 | ) |  | 756 |
Cash and cash equivalents at end of period |  | $ | — |  |  | $ | 1,927 |  |  | $ | 400 |  |  | $ | (1,843 | ) |  | $ | 484 |
Condensed Consolidating Statement of Cash Flows
|  | Nine months ended September 30, 2017
(millions) |  | Aon plc |  | Aon Corporation |  | Other Non-Guarantor Subsidiaries |  | Consolidating Adjustments |  | Consolidated
Cash flows from operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash provided by (used for) operating activities - continuing operations |  | $ | (135 | ) |  | $ | 999 |  |  | $ | 987 |  |  | $ | (1,562 | ) |  | $ | 289 |
Cash provided by operating activities - discontinued operations |  | — |  |  | — |  |  | 64 |  |  | — |  |  | 64 |
Cash provided by (used for) operating activities |  | (135 | ) |  | 999 |  |  | 1,051 |  |  | (1,562 | ) |  | 353 |
Cash flows from investing activities |  |  |  |  |  |  |  |  |  |
Proceeds from investments |  | — |  |  | 576 |  |  | 11 |  |  | (544 | ) |  | 43 |
Payments for investments |  | (16 | ) |  | (25 | ) |  | (571 | ) |  | 557 |  |  | (55 | )
Net sales (purchases) of short-term investments - non-fiduciary |  | — |  |  | (1,328 | ) |  | (16 | ) |  | — |  |  | (1,344 | )
Acquisition of businesses, net of cash acquired |  | — |  |  | 1 |  |  | (173 | ) |  | — |  |  | (172 | )
Sale of businesses, net of cash sold |  | — |  |  | — |  |  | 4,194 |  |  | — |  |  | 4,194 |
Capital expenditures |  | — |  |  | — |  |  | (125 | ) |  | — |  |  | (125 | )
Cash provided by (used for) investing activities - continuing operations |  | (16 | ) |  | (776 | ) |  | 3,320 |  |  | 13 |  |  | 2,541 |
Cash used for investing activities - discontinued operations |  | — |  |  | — |  |  | (19 | ) |  | — |  |  | (19 | )
Cash provided by (used for) investing activities |  | (16 | ) |  | (776 | ) |  | 3,301 |  |  | 13 |  |  | 2,522 |
Cash flows from financing activities |  |  |  |  |  |  |  |  |  |
Share repurchase |  | (1,888 | ) |  | — |  |  | — |  |  | — |  |  | (1,888 | )
Advances from (to) affiliates |  | 2,722 |  |  | 1,304 |  |  | (4,274 | ) |  | 248 |  |  | — |
Issuance of shares for employee benefit plans |  | (118 | ) |  | — |  |  | — |  |  | — |  |  | (118 | )
Issuance of debt |  | 544 |  |  | 1,100 |  |  | 7 |  |  | — |  |  | 1,651 |
Repayment of debt |  | (835 | ) |  | (1,150 | ) |  | (13 | ) |  | — |  |  | (1,998 | )
Cash dividends to shareholders |  | (274 | ) |  | — |  |  | — |  |  | — |  |  | (274 | )
Noncontrolling interests and other financing activities |  | — |  |  | — |  |  | (21 | ) |  | — |  |  | (21 | )
Cash provided by (used for) financing activities - continuing operations |  | 151 |  |  | 1,254 |  |  | (4,301 | ) |  | 248 |  |  | (2,648 | )
Cash used for financing activities - discontinued operations |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Cash provided by (used for) financing activities |  | 151 |  |  | 1,254 |  |  | (4,301 | ) |  | 248 |  |  | (2,648 | )
Effect of exchange rates on cash and cash equivalents |  | — |  |  | — |  |  | 91 |  |  | — |  |  | 91 |
Net increase (decrease) in cash and cash equivalents |  | — |  |  | 1,477 |  |  | 142 |  |  | (1,301 | ) |  | 318 |
Cash and cash equivalents at beginning of period |  | — |  |  | 1,633 |  |  | 660 |  |  | (1,862 | ) |  | 431 |
Cash and cash equivalents at end of period |  | $ | — |  |  | $ | 3,110 |  |  | $ | 802 |  |  | $ | (3,163 | ) |  | $ | 749 |
(1) | Includes $5 million of discontinued operations at December 31, 2016.

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | aon_GuaranteeOfRegisteredSecuritiesAbstract
Namespace Prefix: | aon_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule Of Condensed Comprehensive Income Statement [Table Text Block] + References No definition available. + Details
Name: | aon_ScheduleOfCondensedComprehensiveIncomeStatementTableTextBlock
Namespace Prefix: | aon_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 3 -Paragraph i -Subsection 10 + Details
Name: | srt_ScheduleOfCondensedBalanceSheetTableTextBlock
Namespace Prefix: | srt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 3 -Paragraph i -Subsection 10 + Details
Name: | srt_ScheduleOfCondensedCashFlowStatementTableTextBlock
Namespace Prefix: | srt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 3 -Paragraph i -Subsection 10 + Details
Name: | srt_ScheduleOfCondensedIncomeStatementTableTextBlock
Namespace Prefix: | srt_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration