Share-based Compensation, Options Outstanding, Exercise Price Range, Lower Range Limit

No definition available.

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- Definition

Share-based Compensation, Options Outstanding, Exercise Price Range, Upper Range Limit

+ References

No definition available.

+ Details

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Namespace Prefix:	afl_
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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(c), d(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Details

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SHARE-BASED COMPENSATION - Stock Options Outstanding and Exercisable (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Per Share - Lower Range	$ 14.99
Range of Exercise Prices Per Share - Upper Range	$ 67.67
Options Outstanding - Stock Option Shares	12,737	14,563	14,506	16,417
Options Outstanding - Weighted-Average Remaining Term (Yrs)	4 years 9 months 18 days
Options Outstanding - Weighted-Average Exercise Price Per Share	$ 45.00	$ 42.76	$ 41.06	$ 37.89
Options Exercisable - Stock Option Shares	10,635	11,246	10,720
Options Exercisable - Weighted-Average Exercise Price Per Share	$ 44.11
Range 1
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Per Share - Lower Range	$ 14.99
Range of Exercise Prices Per Share - Upper Range	$ 39.61
Options Outstanding - Stock Option Shares	2,593
Options Outstanding - Weighted-Average Remaining Term (Yrs)	4 years 1 month 6 days
Options Outstanding - Weighted-Average Exercise Price Per Share	$ 31.29
Options Exercisable - Stock Option Shares	2,529
Options Exercisable - Weighted-Average Exercise Price Per Share	$ 31.15
Range 2
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Per Share - Lower Range	$ 39.73
Range of Exercise Prices Per Share - Upper Range	$ 43.07
Options Outstanding - Stock Option Shares	2,599
Options Outstanding - Weighted-Average Remaining Term (Yrs)	3 years 1 month 6 days
Options Outstanding - Weighted-Average Exercise Price Per Share	$ 41.11
Options Exercisable - Stock Option Shares	2,442
Options Exercisable - Weighted-Average Exercise Price Per Share	$ 41.11
Range 3
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Per Share - Lower Range	$ 43.28
Range of Exercise Prices Per Share - Upper Range	$ 47.25
Options Outstanding - Stock Option Shares	3,169
Options Outstanding - Weighted-Average Remaining Term (Yrs)	4 years 8 months 12 days
Options Outstanding - Weighted-Average Exercise Price Per Share	$ 45.74
Options Exercisable - Stock Option Shares	2,424
Options Exercisable - Weighted-Average Exercise Price Per Share	$ 45.45
Range 4
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Per Share - Lower Range	$ 47.23
Range of Exercise Prices Per Share - Upper Range	$ 57.90
Options Outstanding - Stock Option Shares	3,169
Options Outstanding - Weighted-Average Remaining Term (Yrs)	6 years 7 months 6 days
Options Outstanding - Weighted-Average Exercise Price Per Share	$ 52.16
Options Exercisable - Stock Option Shares	2,033
Options Exercisable - Weighted-Average Exercise Price Per Share	$ 51.60
Range 5
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices Per Share - Lower Range	$ 61.81
Range of Exercise Prices Per Share - Upper Range	$ 67.67
Options Outstanding - Stock Option Shares	1,207
Options Outstanding - Weighted-Average Remaining Term (Yrs)	5 years 1 month 6 days
Options Outstanding - Weighted-Average Exercise Price Per Share	$ 62.08
Options Exercisable - Stock Option Shares	1,207
Options Exercisable - Weighted-Average Exercise Price Per Share	$ 62.08