v3.20.4
Additional Financial Information - Supplemental Consolidated Statements of Cash Flows Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Related Party Transactions [Abstract]      
Interest payments, net of amounts capitalized $ 2,733 $ 1,128 $ 1,525
Operating lease payments 4,619 2,783 0
Income tax payments 218 88 51
Non-cash investing and financing activities      
Non-cash beneficial interest obtained in exchange for securitized receivables 6,194 6,509 4,972
Non-cash consideration for the acquisition of Sprint 33,533 0 0
Change in accounts payable and accrued liabilities for purchases of property and equipment 589 (935) 65
Leased devices transferred from inventory to property and equipment 2,795 1,006 1,011
Returned leased devices transferred from property and equipment to inventory (1,460) (267) (326)
Short-term debt assumed for financing of property and equipment 38 800 291
Operating lease right-of-use assets obtained in exchange for lease obligations 14,129 3,621 0
Financing lease right-of-use assets obtained in exchange for lease obligations $ 1,273 $ 1,041 $ 885