Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Cash flows from operating activities:
Net loss	$ (24)	$ (132)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	101	101
Loss on disposal of property and equipment—net	0	1
Loss on extinguishment of debt	23	0
Amortization of deferred financing costs	3	2
Deferred tax benefit	(4)	(17)
Share-based compensation expense	10	7
(Benefit) provision for doubtful accounts	(12)	180
Changes in operating assets and liabilities:
(Increase) decrease in receivables	(315)	157
(Increase) decrease in inventories—net	(178)	6
Increase in prepaid expenses and other assets	(25)	(26)
Increase (decrease) in accounts payable and cash overdraft liability	555	(215)
Increase (decrease) in accrued expenses and other liabilities	42	(126)
Net cash provided by (used in) operating activities	176	(62)
Cash flows from investing activities:
Proceeds from sales of assets	0	5
Purchases of property and equipment	(46)	(79)
Net cash used in investing activities	(46)	(74)
Cash flows from financing activities:
Proceeds from debt borrowings	900	1,945
Principal payments on debt and financing leases	(926)	(827)
Debt financing costs and fees	(18)	0
Proceeds from employee stock purchase plan	5	6
Proceeds from exercise of stock options	4	1
Tax withholding payments for net share-settled equity awards	(12)	(2)
Net cash (used in) provided by financing activities	(47)	1,123
Net increase in cash, cash equivalents and restricted cash	83	987
Cash, cash equivalents and restricted cash—beginning of period	829	98
Cash, cash equivalents and restricted cash—end of period	912	1,085
Supplemental disclosures of cash flow information:
Interest paid—net of amounts capitalized	33	41
Income taxes paid—net	0	2
Property and equipment purchases included in accounts payable	23	38
Property and equipment transferred to assets held for sale	9	14
Leased assets obtained in exchange for financing lease liabilities	7	59
Leased assets obtained in exchange for operating lease liabilities	8	2
Paid-in-kind Series A convertible preferred stock dividends	$ 15	$ 0