v3.22.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating activities      
Net income $ 3,024 $ 3,064 $ 3,468
Adjustments to reconcile net income to net cash provided by operating activities      
Depreciation and amortization 16,383 14,151 6,616
Stock-based compensation expense 540 694 495
Deferred income tax expense 197 822 1,091
Bad debt expense 452 602 307
Losses from sales of receivables 15 36 130
Losses on redemption of debt 184 371 19
Impairment expense 0 418 0
Changes in operating assets and liabilities      
Accounts receivable (3,225) (3,273) (3,709)
Equipment installment plan receivables (3,141) (1,453) (1,015)
Inventories 201 (2,222) (617)
Operating lease right-of-use assets 4,964 3,465 1,896
Other current and long-term assets (573) (402) (144)
Accounts payable and accrued liabilities 549 (2,123) 17
Short- and long-term operating lease liabilities (5,358) (3,699) (2,131)
Other current and long-term liabilities (531) (2,178) 144
Other, net 236 367 257
Net cash provided by operating activities 13,917 8,640 6,824
Investing activities      
Purchases of property and equipment, including capitalized interest of ($210), ($440) and ($473) (12,326) (11,034) (6,391)
Purchases of spectrum licenses and other intangible assets, including deposits (9,366) (1,333) (967)
Proceeds from sales of tower sites 40 0 38
Proceeds related to beneficial interests in securitization transactions 4,131 3,134 3,876
Net cash related to derivative contracts under collateral exchange arrangements 0 632 (632)
Acquisition of companies, net of cash and restricted cash acquired (1,916) (5,000) (31)
Proceeds from the divestiture of prepaid business 0 1,224 0
Other, net 51 (338) (18)
Net cash used in investing activities (19,386) (12,715) (4,125)
Financing activities      
Proceeds from issuance of long-term debt 14,727 35,337 0
Payments of consent fees related to long-term debt 0 (109) 0
Proceeds from borrowing on revolving credit facility 0 0 2,340
Repayments of revolving credit facility 0 0 (2,340)
Repayments of financing lease obligations (1,111) (1,021) (798)
Repayments of short-term debt for purchases of inventory, property and equipment and other financial liabilities (184) (481) (775)
Repayments of long-term debt (11,100) (20,416) (600)
Issuance of common stock 0 19,840 0
Repurchases of common stock 0 (19,536) 0
Proceeds from issuance of short-term debt 0 18,743 0
Repayments of short-term debt 0 (18,929) 0
Tax withholdings on share-based awards (316) (439) (156)
Cash payments for debt prepayment or debt extinguishment costs (116) (82) (28)
Other, net (191) 103 (17)
Net cash provided by (used in) financing activities 1,709 13,010 (2,374)
Change in cash and cash equivalents, including restricted cash (3,760) 8,935 325
Cash and cash equivalents, including restricted cash      
Beginning of period 10,463 1,528 1,203
End of period $ 6,703 $ 10,463 $ 1,528