Divestiture Of Northwest Operations	6 Months Ended
Jun. 30, 2021
Divestiture Of Northwest Operations [Abstract]
Divestiture Of Northwest Operations	(9) Divestiture of Northwest Operations: On May 1, 2020, Old Frontier completed the sale of its Northwest Operations pursuant to the terms and conditions of the Purchase Agreement, dated as of May 28, 2019, for gross proceeds of $1,352 million, subject to certain closing adjustments. Net of funding certain pension and other retiree medical liabilities, funding of indebtedness, funding certain escrows and other closing adjustments, we received $1,131 million in proceeds. A portion of the proceeds from the sale were held in escrow as recourse for indemnity claims that may arise under the purchase agreement for a period of one year after the sale completion date. During the first and second quarter of 2021, all proceeds previously held in escrow related to indemnification liabilities, employee liabilities, and adjustments to working capital were received by the Company and as of June 30, 2021, there are no remaining proceeds held in escrow accounts included in Other current assets. In connection with the sale, Frontier entered into an agreement to perform certain transition services for the purchaser. Effective October 31, 2020, the purchaser terminated all future services that Frontier would have provided and received compensation under this agreement. In connection with the termination, Frontier agreed to provide limited training and subject matter support services for a fee primarily during the fourth quarter of 2020. The Northwest Operations were included in Frontier’s continuing operations and designated as assets held for sale and liabilities related to assets held for sale. Effective with the designation as held-for-sale on May 28, 2019, we discontinued recording depreciation on Property, Plant and Equipment and finite-lived intangible assets of this business as required by GAAP. Upon closing of the transaction on May 1, 2020, we derecognized net assets of $1,132 million, including property, plant, and equipment of $1,084 million, goodwill of $658 million, a $603 million valuation allowance on our assets held for sale, and $150 million of defined benefit pension and other postretirement benefit plan obligations, net of transferred pension plan assets. During the three and six months ended June 30, 2020, Frontier recorded a loss on disposal of $136 million and $160 million, associated with the sale of the Northwest Operations.

Divestiture Of Northwest Operations

6 Months Ended

Jun. 30, 2021

Divestiture Of Northwest Operations [Abstract]

(9) Divestiture of Northwest Operations:

On May 1, 2020, Old Frontier completed the sale of its Northwest Operations pursuant to the terms and conditions of the Purchase Agreement, dated as of May 28, 2019, for gross proceeds of $1,352 million, subject to certain closing adjustments. Net of funding certain pension and other retiree medical liabilities, funding of indebtedness, funding certain escrows and other closing adjustments, we received $1,131 million in proceeds.

A portion of the proceeds from the sale were held in escrow as recourse for indemnity claims that may arise under the purchase agreement for a period of one year after the sale completion date. During the first and second quarter of 2021, all proceeds previously held in escrow related to indemnification liabilities, employee liabilities, and adjustments to working capital were received by the Company and as of June 30, 2021, there are no remaining proceeds held in escrow accounts included in Other current assets.

In connection with the sale, Frontier entered into an agreement to perform certain transition services for the purchaser. Effective October 31, 2020, the purchaser terminated all future services that Frontier would have provided and received compensation under this agreement. In connection with the termination, Frontier agreed to provide limited training and subject matter support services for a fee primarily during the fourth quarter of 2020.

The Northwest Operations were included in Frontier’s continuing operations and designated as assets held for sale and liabilities related to assets held for sale. Effective with the designation as held-for-sale on May 28, 2019, we discontinued recording depreciation on Property, Plant and Equipment and finite-lived intangible assets of this business as required by GAAP. Upon closing of the transaction on May 1, 2020, we derecognized net assets of $1,132 million, including property, plant, and equipment of $1,084 million, goodwill of $658 million, a $603 million valuation allowance on our assets held for sale, and $150 million of defined benefit pension and other postretirement benefit plan obligations, net of transferred pension plan assets.

During the three and six months ended June 30, 2020, Frontier recorded a loss on disposal of $136 million and $160 million, associated with the sale of the Northwest Operations.