CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net income	$ 1,058,640	$ 1,087,060
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, equipment and intangibles	168,045	158,917
Amortization of debt discount and issuance costs	2,242	2,207
Deferred income taxes	28,302	21,922
Share-based compensation programs	12,702	12,575
Other	283	1,382
Changes in operating assets and liabilities:
Accounts receivable	(60,593)	(45,359)
Inventory	(318,756)	6,357
Accounts payable	563,012	398,785
Income taxes payable	12,013	12,408
Other	(73,917)	56,578
Net cash provided by operating activities	1,391,973	1,712,832
Investing activities:
Purchases of property and equipment	(228,921)	(222,607)
Proceeds from sale of property and equipment	8,222	4,566
Investment in tax credit equity investments	(4,080)	(1,768)
Other	(86)	(1,083)
Net cash used in investing activities	(224,865)	(220,892)
Financing activities:
Proceeds from borrowings on revolving credit facility	785,800	0
Payments on revolving credit facility	(785,800)	0
Proceeds from the issuance of long-term debt	847,314	0
Principal payments on long-term debt	0	(300,000)
Payment of debt issuance costs	(6,323)	(3,299)
Repurchases of common stock	(2,151,242)	(1,064,189)
Net proceeds from issuance of common stock	35,112	41,921
Other	(350)	(313)
Net cash used in financing activities	(1,275,489)	(1,325,880)
Effect of exchange rate changes on cash	172	(82)
Net (decrease) increase in cash and cash equivalents	(108,209)	165,978
Net (decrease) increase in cash and cash equivalents	(108,209)	165,978
Cash and cash equivalents at beginning of the period	362,113	465,640
Cash and cash equivalents at end of the period	253,904	631,618
Supplemental disclosures of cash flow information:
Income taxes paid	291,695	292,673
Interest paid, net of capitalized interest	$ 68,318	$ 76,788