Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Cash flows from operating activities:
Net (loss) income	$ (132)	$ 71
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	101	81
Loss on disposal of property and equipment—net	1	0
Amortization of deferred financing costs	2	1
Deferred tax benefit	(17)	(3)
Share-based compensation expense	7	6
Provision for doubtful accounts	180	6
Changes in operating assets and liabilities:
Decrease (increase) in receivables	157	(131)
Decrease in inventories—net	6	7
Increase in prepaid expenses and other assets	(26)	(8)
(Decrease) increase in accounts payable and cash overdraft liability	(215)	183
Decrease in accrued expenses and other liabilities	(126)	(59)
Net cash (used in) provided by operating activities	(62)	154
Cash flows from investing activities:
Proceeds from sales of divested assets	5	0
Purchases of property and equipment	(79)	(61)
Net cash used in investing activities	(74)	(61)
Cash flows from financing activities:
Proceeds from debt borrowings	1,945	1,004
Principal payments on debt and financing leases	(827)	(1,119)
Proceeds from employee stock purchase plan	6	5
Proceeds from exercise of stock options	1	6
Tax withholding payments for net share-settled equity awards	(2)	(2)
Net cash provided by (used in) financing activities	1,123	(106)
Net increase (decrease) in cash, cash equivalents and restricted cash	987	(13)
Cash, cash equivalents and restricted cash—beginning of period	98	105
Cash, cash equivalents and restricted cash—end of period	1,085	92
Supplemental disclosures of cash flow information:
Interest paid—net of amounts capitalized	41	36
Income taxes paid—net	2	1
Property and equipment purchases included in accounts payable	38	17
Leased assets obtained in exchange for financing lease liabilities	59	38
Leased assets obtained in exchange for operating lease liabilities	2	2
Cashless exercise of stock options	$ 0	$ 1