BACKGROUND AND BASIS OF PRESENTATION	12 Months Ended
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BACKGROUND AND BASIS OF PRESENTATION	BACKGROUND AND BASIS OF PRESENTATION Description of Business: Alexander & Baldwin, Inc. ("A&B" or the "Company") is headquartered in Honolulu and operates three segments: Commercial Real Estate (formerly Leasing); Land Operations (formerly Real Estate Development and Sales and Agribusiness); and Materials and Construction. On October 25, 2016, the Company's Board of Directors approved a plan to perform an in-depth exploration of a potential conversion of the Company to a real estate investment trust (REIT). Commercial Real Estate: The Commercial Real Estate segment owns, operates and manages retail, office and industrial properties in Hawaii and on the Mainland. The Commercial Real Estate segment also leases urban land in Hawaii to third-party lessees. Land Operations: Primary activities of the Land Operations segment, include planning, zoning, financing, constructing, purchasing, managing, leasing agricultural land, selling, and investing in real property; renewable energy; and agribusiness. The Land Operations segment also provides general trucking services, equipment maintenance and repair services, and generates and sells electricity to the extent not used elsewhere in the Company's operations. On December 31, 2015, the Company determined it would cease its sugar operations on Maui upon completing its final harvest in 2016 (the "Cessation"). See "Note 18 - Cessation of Sugar Operations" for further discussion regarding the Cessation and the related costs associated with such exit and disposal activities. Materials and Construction: The Materials and Construction segment, which primarily includes the results of Grace Pacific ("Grace"), performs asphalt paving as prime contractor and subcontractor; imports and sells liquid asphalt; mines, processes and sells rock and sand aggregate; produces and sells asphaltic concrete and ready-mix concrete; provides and sells various construction- and traffic-control-related products; and manufactures and sells precast concrete products. Reclassifications: Prior year financial statement amounts are reclassified as necessary to conform to the current year presentation, including presentation of results of discontinued operations and reportable operating segments. There was no impact on net income, retained earnings or cash flows as a result of the reclassifications. See "Note 4 - Discontinued Operations" and "Note 19 - Segment Results" in the accompanying consolidated financial statements for additional information. Rounding: Amounts in the consolidated financial statements and notes thereto are rounded to the nearest tenth of a million, but per-share calculations were determined based on amounts before rounding. Accordingly, a recalculation of some per-share amounts and percentages, if based on the reported data, may result in differences.

BACKGROUND AND BASIS OF PRESENTATION

Description of Business: Alexander & Baldwin, Inc. ("A&B" or the "Company") is headquartered in Honolulu and operates three segments: Commercial Real Estate (formerly Leasing); Land Operations (formerly Real Estate Development and Sales and Agribusiness); and Materials and Construction. On October 25, 2016, the Company's Board of Directors approved a plan to perform an in-depth exploration of a potential conversion of the Company to a real estate investment trust (REIT).

Commercial Real Estate: The Commercial Real Estate segment owns, operates and manages retail, office and industrial properties in Hawaii and on the Mainland. The Commercial Real Estate segment also leases urban land in Hawaii to third-party lessees.

Land Operations: Primary activities of the Land Operations segment, include planning, zoning, financing, constructing, purchasing, managing, leasing agricultural land, selling, and investing in real property; renewable energy; and agribusiness. The Land Operations segment also provides general trucking services, equipment maintenance and repair services, and generates and sells electricity to the extent not used elsewhere in the Company's operations. On December 31, 2015, the Company determined it would cease its sugar operations on Maui upon completing its final harvest in 2016 (the "Cessation"). See "Note 18 - Cessation of Sugar Operations" for further discussion regarding the Cessation and the related costs associated with such exit and disposal activities.

Materials and Construction: The Materials and Construction segment, which primarily includes the results of Grace Pacific ("Grace"), performs asphalt paving as prime contractor and subcontractor; imports and sells liquid asphalt; mines, processes and sells rock and sand aggregate; produces and sells asphaltic concrete and ready-mix concrete; provides and sells various construction- and traffic-control-related products; and manufactures and sells precast concrete products.

Reclassifications: Prior year financial statement amounts are reclassified as necessary to conform to the current year presentation, including presentation of results of discontinued operations and reportable operating segments. There was no impact on net income, retained earnings or cash flows as a result of the reclassifications. See "Note 4 - Discontinued Operations" and "Note 19 - Segment Results" in the accompanying consolidated financial statements for additional information.

Rounding: Amounts in the consolidated financial statements and notes thereto are rounded to the nearest tenth of a million, but per-share calculations were determined based on amounts before rounding. Accordingly, a recalculation of some per-share amounts and percentages, if based on the reported data, may result in differences.