GOODWILL (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014 item	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill Disclosure
Number of steps involved in process of impairment test	2
Goodwill
Goodwill - gross	$ 4,952us-gaap_GoodwillGross	$ 4,946us-gaap_GoodwillGross	$ 4,850us-gaap_GoodwillGross
Accumulated impairments	(3,477)	(3,477)	(3,477)
Net goodwill	1,475us-gaap_Goodwill	1,469us-gaap_Goodwill	1,373us-gaap_Goodwill
Increase (decrease) due to:
Acquisition			119us-gaap_GoodwillAcquiredDuringPeriod
Other	49us-gaap_GoodwillOtherChanges	6us-gaap_GoodwillOtherChanges	(23)us-gaap_GoodwillOtherChanges
Goodwill - gross	4,931us-gaap_GoodwillGross	4,952us-gaap_GoodwillGross	4,946us-gaap_GoodwillGross
Accumulated impairments	(3,477)	(3,477)	(3,477)
Net goodwill	1,454us-gaap_Goodwill	1,475us-gaap_Goodwill	1,469us-gaap_Goodwill
Reportable Segments \| Total AIG Property Casualty
Goodwill
Goodwill - gross	2,450	2,444
Accumulated impairments	(1,266)	(1,266)
Net goodwill	1,184	1,178
Increase (decrease) due to:
Other	49	6
Goodwill - gross	2,401	2,450
Accumulated impairments	(1,266)	(1,266)
Net goodwill	1,135	1,184
Reportable Segments \| Commercial
Goodwill
Goodwill - gross	2,450	2,444	2,325
Accumulated impairments	(1,266)	(1,266)	(1,266)
Net goodwill	1,184	1,178	1,059
Increase (decrease) due to:
Acquisition			119
Other	(49)	6
Goodwill - gross	2,401	2,450	2,444
Accumulated impairments	(1,266)	(1,266)	(1,266)
Net goodwill	1,135	1,184	1,178
Reportable Segments \| Consumer
Goodwill
Goodwill - gross	2,502		2,502
Accumulated impairments	(2,211)		(2,211)
Net goodwill	291		291
Increase (decrease) due to:
Acquisition	28
Other			(23)
Goodwill - gross	2,530		2,502
Accumulated impairments	(2,211)		(2,211)
Net goodwill	319		291
Other
Goodwill
Goodwill - gross		0		23
Accumulated impairments		0		0
Net goodwill		0		23
Increase (decrease) due to:
Acquisition		28
Goodwill - gross	0	0		23
Accumulated impairments	0	0		0
Net goodwill	$ 0	$ 0		$ 23

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of other (increase) decrease of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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