Acquisitions	6 Months Ended
Jun. 30, 2014
Business Combinations [Abstract]
Acquisitions	Acquisitions Large Corporate P&C Insurance Business of Itaú Seguros, S.A. (Itaú Seguros) On July 4, 2014, we announced that we reached a definitive agreement to acquire the large corporate property and casualty (P&C) insurance business of Itaú Seguros, Brazil's leading carrier for that business, for approximately $685 million, at current exchange rates. This transaction, which is subject to regulatory approval and other customary closing conditions, is expected to be completed in the first quarter of 2015. The Siam Commercial Samaggi Insurance PCL (Samaggi) We and our local partner acquired 60.86 percent of Samaggi, a general insurance company in Thailand, from Siam Commercial Bank on April 28, 2014, and subsequently acquired an additional 32.17 percent ownership, through a mandatory tender offer, which expired on June 17, 2014. The purchase price for 93.03 percent of the company was $176 million in cash. This acquisition expands our presence in Thailand and Southeast Asia. The acquisition generated $46 million of goodwill, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, and other intangible assets of $80 million based on ACE’s preliminary purchase price allocation. The other intangible assets primarily relate to a bancassurance agreement. Goodwill and other intangible assets arising from this acquisition are included in the Insurance – Overseas General segment. ABA Seguros On May 2, 2013, we acquired ABA Seguros, a property and casualty insurer in Mexico that provides automobile, homeowners, and small business coverages for approximately $690 million in cash. The acquisition generated $285 million of goodwill, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, and other intangible assets of $140 million based on ACE’s purchase price allocation. The other intangible assets primarily relate to distribution channels. Amortization of other intangible assets is included in Other (income) expense in the consolidated statements of operations. Goodwill and other intangible assets arising from this acquisition are included in the Insurance – Overseas General segment. Fianzas Monterrey On April 1, 2013, we acquired Fianzas Monterrey, a leading surety lines company in Mexico offering administrative performance bonds primarily to clients in the construction and industrial sectors, for approximately $293 million in cash. This acquisition greatly expanded our global franchise in the surety business and enhanced our existing commercial lines and personal accident insurance business in Mexico. The acquisition generated $137 million of goodwill, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, and other intangible assets of $73 million, based on ACE's purchase price allocation. The other intangible assets primarily relate to customer lists. Amortization of other intangible assets is included in Other (income) expense in the consolidated statements of operations. Goodwill and other intangible assets arising from this acquisition are included in the Insurance – Overseas General segment.

Acquisitions

Large Corporate P&C Insurance Business of Itaú Seguros, S.A. (Itaú Seguros)

On July 4, 2014, we announced that we reached a definitive agreement to acquire the large corporate property and casualty (P&C) insurance business of Itaú Seguros, Brazil's leading carrier for that business, for approximately $685 million, at current exchange rates. This transaction, which is subject to regulatory approval and other customary closing conditions, is expected to be completed in the first quarter of 2015.

The Siam Commercial Samaggi Insurance PCL (Samaggi)

We and our local partner acquired 60.86 percent of Samaggi, a general insurance company in Thailand, from Siam Commercial Bank on April 28, 2014, and subsequently acquired an additional 32.17 percent ownership, through a mandatory tender offer, which expired on June 17, 2014. The purchase price for 93.03 percent of the company was $176 million in cash. This acquisition expands our presence in Thailand and Southeast Asia.

The acquisition generated $46 million of goodwill, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, and other intangible assets of $80 million based on ACE’s preliminary purchase price allocation. The other intangible assets primarily relate to a bancassurance agreement. Goodwill and other intangible assets arising from this acquisition are included in the Insurance – Overseas General segment.

ABA Seguros

On May 2, 2013, we acquired ABA Seguros, a property and casualty insurer in Mexico that provides automobile, homeowners, and small business coverages for approximately $690 million in cash.

The acquisition generated $285 million of goodwill, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, and other intangible assets of $140 million based on ACE’s purchase price allocation. The other intangible assets primarily relate to distribution channels. Amortization of other intangible assets is included in Other (income) expense in the consolidated statements of operations. Goodwill and other intangible assets arising from this acquisition are included in the Insurance – Overseas General segment.

Fianzas Monterrey

On April 1, 2013, we acquired Fianzas Monterrey, a leading surety lines company in Mexico offering administrative performance bonds primarily to clients in the construction and industrial sectors, for approximately $293 million in cash. This acquisition greatly expanded our global franchise in the surety business and enhanced our existing commercial lines and personal accident insurance business in Mexico.

The acquisition generated $137 million of goodwill, attributable to expected growth and profitability, none of which is expected to be deductible for income tax purposes, and other intangible assets of $73 million, based on ACE's purchase price allocation. The other intangible assets primarily relate to customer lists. Amortization of other intangible assets is included in Other (income) expense in the consolidated statements of operations. Goodwill and other intangible assets arising from this acquisition are included in the Insurance – Overseas General segment.