Information Provided In Connection With Outstanding Debt Of Subsidiaries (Condensed Consolidating Statement Of Operations) (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | |||||||||
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2012
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Jun. 30, 2011
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Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items] | |||||||||||
Net premiums written | $ 4,130 | $ 3,953 | $ 7,702 | $ 7,399 | |||||||
Net premiums earned | 3,783 | 3,757 | 7,164 | 7,066 | |||||||
Net investment income | 537 | 569 | 1,081 | 1,113 | |||||||
Net realized gains (losses) including OTTI | (394) | (73) | (134) | (118) | |||||||
Losses and loss expenses | 2,119 | 2,226 | 3,923 | 4,489 | |||||||
Policy benefits | 102 | 108 | 249 | 199 | |||||||
Policy acquisition costs and administrative expenses | 1,133 | 1,130 | 2,225 | 2,188 | |||||||
Interest (income) expense | 62 | 62 | 124 | 125 | |||||||
Other (income) expense | 34 | 12 | 31 | (1) | |||||||
Income tax expense | 148 | 121 | 258 | 217 | |||||||
Net income | 328 | 594 | 1,301 | 844 | |||||||
Comprehensive income | 457 | 801 | 1,728 | 1,239 | |||||||
Parent Company [Member]
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Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items] | |||||||||||
Net investment income | 1 | 1 | 1 | ||||||||
Equity in earnings of subsidiaries | 301 | 566 | 1,229 | 805 | |||||||
Net realized gains (losses) including OTTI | 2 | (1) | 22 | (2) | |||||||
Policy acquisition costs and administrative expenses | 14 | 18 | 26 | 36 | |||||||
Interest (income) expense | (8) | (10) | (17) | (18) | |||||||
Other (income) expense | (33) | (40) | (63) | (62) | |||||||
Income tax expense | 3 | 3 | 5 | 4 | |||||||
Net income | 328 | 594 | 1,301 | 844 | |||||||
Comprehensive income | 457 | 801 | 1,728 | 1,239 | |||||||
Guarantor Subsidiaries [Member]
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Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items] | |||||||||||
Net premiums written | 2,327 | 2,306 | 4,425 | 4,329 | |||||||
Net premiums earned | 2,196 | 2,225 | 4,148 | 4,163 | |||||||
Net investment income | 257 | 282 | 522 | 544 | |||||||
Net realized gains (losses) including OTTI | 34 | 17 | 60 | 4 | |||||||
Losses and loss expenses | 1,325 | 1,438 | 2,507 | 2,739 | |||||||
Policy benefits | 54 | 59 | 140 | 99 | |||||||
Policy acquisition costs and administrative expenses | 656 | 620 | 1,296 | 1,208 | |||||||
Interest (income) expense | 58 | 66 | 124 | 133 | |||||||
Other (income) expense | 9 | 23 | 34 | 36 | |||||||
Income tax expense | 119 | 109 | 204 | 177 | |||||||
Net income | 266 | 209 | 425 | 319 | |||||||
Comprehensive income | 323 | 382 | 610 | 592 | |||||||
Other ACE Limited Subsidiaries And Eliminations [Member]
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Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items] | |||||||||||
Net premiums written | 1,803 | [1] | 1,647 | [1] | 3,277 | 3,070 | [1] | ||||
Net premiums earned | 1,587 | [1] | 1,532 | [1] | 3,016 | 2,903 | [1] | ||||
Net investment income | 279 | [1] | 287 | [1] | 558 | 568 | [1] | ||||
Net realized gains (losses) including OTTI | (430) | [1] | (89) | [1] | (216) | (120) | [1] | ||||
Losses and loss expenses | 794 | [1] | 788 | [1] | 1,416 | 1,750 | [1] | ||||
Policy benefits | 48 | [1] | 49 | [1] | 109 | 100 | [1] | ||||
Policy acquisition costs and administrative expenses | 463 | [1] | 492 | [1] | 903 | 944 | [1] | ||||
Interest (income) expense | 12 | [1] | 6 | [1] | 17 | 10 | [1] | ||||
Other (income) expense | 58 | [1] | 29 | [1] | 60 | 25 | [1] | ||||
Income tax expense | 26 | [1] | 9 | [1] | 49 | 36 | [1] | ||||
Net income | 35 | [1] | 357 | [1] | 804 | 486 | [1] | ||||
Comprehensive income | (22) | [1] | 184 | [1] | 619 | 213 | [1] | ||||
Consolidation, Eliminations [Member]
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Information Provided In Connection With Outstanding Debt Of Subsidiaries [Line Items] | |||||||||||
Equity in earnings of subsidiaries | (301) | [2] | (566) | [2] | (1,229) | (805) | [2] | ||||
Net income | (301) | [2] | (566) | [2] | (1,229) | (805) | [2] | ||||
Comprehensive income | $ (301) | [2] | $ (566) | [2] | $ (1,229) | $ (805) | [2] | ||||
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