Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 187	$ 193
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	173	165
Gain on disposal of property and equipment—net	(1)	(1)
Amortization of deferred financing costs	2	5
Deferred tax (benefit) provision	(7)	38
Share-based compensation expense	15	17
Provision for doubtful accounts	10	9
Changes in operating assets and liabilities:
Increase in receivables	(118)	(98)
Decrease in inventories—net	2	0
Decrease (increase) in prepaid expenses and other assets	1	(19)
Increase in accounts payable and cash overdraft liability	164	175
Decrease in accrued expenses and other liabilities	(34)	(173)
Net cash provided by operating activities	394	311
Cash flows from investing activities:
Acquisition of businesses—net of cash	0	(1)
Proceeds from sales of property and equipment	8	2
Purchases of property and equipment	(110)	(117)
Net cash used in investing activities	(102)	(116)
Cash flows from financing activities:
Proceeds from debt borrowings	2,006	2,151
Principal payments on debt and financing leases	(2,318)	(2,383)
Contingent consideration paid for business acquisitions	0	(2)
Payment for debt financing costs and fees	(4)	(1)
Proceeds from employee stock purchase plan	10	10
Proceeds from exercise of stock options	11	16
Tax withholding payments for net share-settled equity awards	(5)	(5)
Net cash used in financing activities	(300)	(214)
Net decrease in cash, cash equivalents and restricted cash	(8)	(19)
Cash, cash equivalents and restricted cash—beginning of period	105	119
Cash, cash equivalents and restricted cash—end of period	97	100
Supplemental disclosures of cash flow information:
Interest paid—net of amounts capitalized	90	88
Income taxes paid—net	73	42
Property and equipment purchases included in accounts payable	19	13
Leased assets obtained in exchange for financing lease liabilities	57	68
Leased assets obtained in exchange for operating lease liabilities	2	0
Cashless exercise of stock options	$ 1	$ 1