Supplementary Insurance Information, by Segment [Line Items]
Supplementary Insurance Information, Deferred Policy Acquisition Costs Supplementary Insurance Information, Liability for Future Policy Benefits, Losses, Claims and Loss Expense Reserves Supplementary Insurance Information, Unearned Premiums Supplementary Insurance Information, Other Policy Claims and Benefits Payable Supplementary Insurance Information, Premium Revenue Supplementary Insurance Information, Net Investment Income Supplementary Insurance Information, Benefits, Claims, Losses and Settlement Expense Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Costs Supplementary Insurance Information, Other Operating Expense Supplementary Insurance Information, Premiums Written
2007 Retail Product Group [Member] 5,315,000,000 961,000,000 13,000,000 15,443,000,000 3,055,000,000 801,000,000 820,000,000 406,000,000 1,221,000,000
Retirement Plans [Member] 658,000,000 333,000,000 0 5,591,000,000 242,000,000 355,000,000 249,000,000 58,000,000 170,000,000
Institutional Solutions Group [Member] 143,000,000 6,863,000,000 57,000,000 12,460,000,000 1,238,000,000 1,241,000,000 2,074,000,000 23,000,000 185,000,000
Individual Life [Member] 2,406,000,000 737,000,000 2,000,000 5,691,000,000 808,000,000 359,000,000 562,000,000 121,000,000 193,000,000
Group Benefits [Member] 69,000,000 6,331,000,000 75,000,000 317,000,000 4,301,000,000 465,000,000 3,109,000,000 62,000,000 1,131,000,000
International [Member] 1,923,000,000 42,000,000 0 39,024,000,000 832,000,000 131,000,000 32,000,000 214,000,000 246,000,000
Other [Member] 0 64,000,000 0 1,816,000,000 67,000,000 290,000,000 301,000,000 0 84,000,000
Life Insurance Segment [Member] 10,514,000,000 15,331,000,000 147,000,000 80,342,000,000 10,543,000,000 3,642,000,000 7,147,000,000 884,000,000 3,230,000,000
Personal Lines [Member] 566,000,000 2,042,000,000 1,909,000,000 0 4,030,000,000 249,000,000 2,697,000,000 617,000,000 402,000,000 3,947,000,000
Small Commercial [Member] 282,000,000 3,470,000,000 1,357,000,000 0 2,737,000,000 299,000,000 1,413,000,000 635,000,000 239,000,000 2,747,000,000
Middle Market [Member] 236,000,000 4,687,000,000 1,191,000,000 0 2,351,000,000 387,000,000 1,524,000,000 529,000,000 188,000,000 2,257,000,000
Speciality Commercial [Member] 144,000,000 6,883,000,000 944,000,000 0 1,869,000,000 504,000,000 1,090,000,000 323,000,000 557,000,000 1,484,000,000
Ongoing Operations [Member] 1,228,000,000 17,082,000,000 5,401,000,000 0 10,987,000,000 1,439,000,000 6,724,000,000 2,104,000,000 1,386,000,000 10,435,000,000
Other Operations [Member] 0 5,071,000,000 1,000,000 0 5,000,000 248,000,000 193,000,000 0 23,000,000 5,000,000
Property, Liability and Casualty Insurance Segment [Member] 1,228,000,000 22,153,000,000 5,402,000,000 0 10,992,000,000 1,687,000,000 6,917,000,000 2,104,000,000 1,409,000,000 10,440,000,000
Corporate [Member] 0 0 (4,000,000) 0 16,000,000 30,000,000 0 1,000,000 219,000,000
Supplementary Insurance Information, Segment Name [Domain] 11,742,000,000 37,484,000,000 5,545,000,000 80,342,000,000 21,551,000,000 5,359,000,000 14,064,000,000 2,989,000,000 4,858,000,000 10,440,000,000
2006 Retail Product Group [Member] 4,680,000,000 863,000,000 6,000,000 15,095,000,000 2,609,000,000 839,000,000 819,000,000 973,000,000 994,000,000
Retirement Plans [Member] 542,000,000 357,000,000 0 5,544,000,000 212,000,000 326,000,000 250,000,000 (4,000,000) 136,000,000
Institutional Solutions Group [Member] 111,000,000 5,925,000,000 20,000,000 11,405,000,000 732,000,000 1,003,000,000 1,484,000,000 32,000,000 78,000,000
Individual Life [Member] 2,111,000,000 623,000,000 3,000,000 5,343,000,000 832,000,000 324,000,000 497,000,000 243,000,000 179,000,000
Group Benefits [Member] 117,000,000 6,150,000,000 74,000,000 352,000,000 4,149,000,000 415,000,000 3,002,000,000 41,000,000 1,101,000,000
International [Member] 1,509,000,000 38,000,000 0 31,782,000,000 701,000,000 123,000,000 3,000,000 167,000,000 208,000,000
Other [Member] 0 60,000,000 0 1,790,000,000 81,000,000 1,978,000,000 1,985,000,000 0 12,000,000
Life Insurance Segment [Member] 9,070,000,000 14,016,000,000 103,000,000 71,311,000,000 9,316,000,000 5,008,000,000 8,040,000,000 1,452,000,000 2,708,000,000
Personal Lines [Member] 510,000,000 1,959,000,000 1,863,000,000 0 3,895,000,000 228,000,000 2,478,000,000 622,000,000 409,000,000 3,877,000,000
Small Commercial [Member] 286,000,000 3,421,000,000 1,348,000,000 0 2,651,000,000 261,000,000 1,468,000,000 634,000,000 181,000,000 2,728,000,000
Middle Market [Member] 253,000,000 4,517,000,000 1,291,000,000 0 2,456,000,000 341,000,000 1,584,000,000 544,000,000 156,000,000 2,445,000,000
Speciality Commercial [Member] 148,000,000 6,378,000,000 1,017,000,000 0 1,899,000,000 395,000,000 1,112,000,000 306,000,000 465,000,000 1,608,000,000
Ongoing Operations [Member] 1,197,000,000 16,275,000,000 5,519,000,000 0 10,901,000,000 1,225,000,000 6,642,000,000 2,106,000,000 1,211,000,000 10,658,000,000
Other Operations [Member] 0 5,716,000,000 3,000,000 0 5,000,000 261,000,000 360,000,000 0 12,000,000 4,000,000
Property, Liability and Casualty Insurance Segment [Member] 1,197,000,000 21,991,000,000 5,522,000,000 0 10,906,000,000 1,486,000,000 7,002,000,000 2,106,000,000 1,223,000,000 10,662,000,000
Corporate [Member] 1,000,000 0 (5,000,000) 0 14,000,000 21,000,000 0 0 367,000,000
Supplementary Insurance Information, Segment Name [Domain] 10,268,000,000 36,007,000,000 5,620,000,000 71,311,000,000 20,236,000,000 6,515,000,000 15,042,000,000 3,558,000,000 4,298,000,000 10,662,000,000
2005 Retail Product Group [Member] 2,272,000,000 933,000,000 895,000,000 740,000,000 867,000,000
Retirement Plans [Member] 162,000,000 311,000,000 231,000,000 30,000,000 117,000,000
Institutional Solutions Group [Member] 624,000,000 802,000,000 1,212,000,000 32,000,000 56,000,000
Individual Life [Member] 768,000,000 305,000,000 469,000,000 206,000,000 166,000,000
Group Benefits [Member] 3,811,000,000 398,000,000 2,794,000,000 31,000,000 1,022,000,000
International [Member] 483,000,000 75,000,000 42,000,000 133,000,000 188,000,000
Other [Member] 83,000,000 4,021,000,000 4,166,000,000 0 106,000,000
Life Insurance Segment [Member] 8,203,000,000 6,845,000,000 9,809,000,000 1,172,000,000 2,522,000,000
Personal Lines [Member] 3,731,000,000 209,000,000 2,294,000,000 581,000,000 451,000,000 3,676,000,000
Small Commercial [Member] 2,421,000,000 222,000,000 1,452,000,000 596,000,000 196,000,000 2,545,000,000
Middle Market [Member] 2,354,000,000 314,000,000 1,521,000,000 537,000,000 159,000,000 2,445,000,000
Speciality Commercial [Member] 2,109,000,000 337,000,000 1,484,000,000 286,000,000 520,000,000 1,817,000,000
Ongoing Operations [Member] 10,615,000,000 1,082,000,000 6,751,000,000 2,000,000,000 1,326,000,000 10,483,000,000
Other Operations [Member] 4,000,000 283,000,000 212,000,000 (3,000,000) 22,000,000 4,000,000
Property, Liability and Casualty Insurance Segment [Member] 10,619,000,000 1,365,000,000 6,963,000,000 1,997,000,000 1,348,000,000 10,487,000,000
Corporate [Member] 13,000,000 21,000,000 4,000,000 0 283,000,000
Supplementary Insurance Information, Segment Name [Domain] 18,835,000,000 8,231,000,000 16,776,000,000 3,169,000,000 4,153,000,000 10,487,000,000