Commitments and Contingencies	9 Months Ended
Sep. 29, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Purchase Commitments—The Company enters into purchase orders with vendors and other parties in the ordinary course of business, and has a limited number of purchase contracts with certain vendors that require it to buy a predetermined volume of products. As of September 29, 2018, the Company had $804 million of purchase orders and purchase contract commitments, for products to be purchased in the remainder of fiscal year 2018 and in 2019, that were not recorded in the Company's Consolidated Balance Sheets. To minimize fuel cost risk, the Company enters into forward purchase commitments for a portion of its projected diesel fuel requirements. At September 29, 2018, the Company had diesel fuel forward purchase commitments totaling $25 million through June 2019. Additionally, as of September 29, 2018, the Company had electricity forward purchase commitments totaling $5 million through June 2021. The Company does not measure its forward purchase commitments for fuel and electricity at fair value, as the amounts under contract meet the physical delivery criteria in the normal purchase exception under GAAP guidance. Legal Proceedings — The Company and its subsidiaries are parties to a number of legal proceedings arising from the normal course of business. These legal proceedings, whether pending, threatened or unasserted, if decided adversely to or settled by the Company, may result in liabilities material to its financial position, results of operations, or cash flows. The Company recognized provisions with respect to the proceedings, where appropriate, in its Consolidated Balance Sheets. It is possible that the Company could be required to make expenditures, in excess of the established provisions, in amounts that cannot be reasonably estimated. However, the Company believes that the ultimate resolution of these proceedings will not have a material adverse effect on its consolidated financial position, results of operations, or cash flows.

COMMITMENTS AND CONTINGENCIES

Purchase Commitments—The Company enters into purchase orders with vendors and other parties in the ordinary course of business, and has a limited number of purchase contracts with certain vendors that require it to buy a predetermined volume of products. As of September 29, 2018, the Company had $804 million of purchase orders and purchase contract commitments, for products to be purchased in the remainder of fiscal year 2018 and in 2019, that were not recorded in the Company's Consolidated Balance Sheets.

To minimize fuel cost risk, the Company enters into forward purchase commitments for a portion of its projected diesel fuel requirements. At September 29, 2018, the Company had diesel fuel forward purchase commitments totaling $25 million through June 2019. Additionally, as of September 29, 2018, the Company had electricity forward purchase commitments totaling $5 million through June 2021. The Company does not measure its forward purchase commitments for fuel and electricity at fair value, as the amounts under contract meet the physical delivery criteria in the normal purchase exception under GAAP guidance.

Legal Proceedings — The Company and its subsidiaries are parties to a number of legal proceedings arising from the normal course of business. These legal proceedings, whether pending, threatened or unasserted, if decided adversely to or settled by the Company, may result in liabilities material to its financial position, results of operations, or cash flows. The Company recognized provisions with respect to the proceedings, where appropriate, in its Consolidated Balance Sheets. It is possible that the Company could be required to make expenditures, in excess of the established provisions, in amounts that cannot be reasonably estimated. However, the Company believes that the ultimate resolution of these proceedings will not have a material adverse effect on its consolidated financial position, results of operations, or cash flows.