XML 146 R124.htm IDEA: XBRL DOCUMENT v3.10.0.1
Sale Of Equipment Installment Receivables (Finance Receivables) (Details) - Finance Receivables [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Gross receivables sold $ 9,391 $ 8,058 $ 7,629
Net receivables sold [1] 8,871 7,388 6,913
Cash proceeds received 7,488 5,623 4,574
Deferred purchase price recorded 1,578 2,077 2,368
Guarantee obligation recorded $ 361 $ 215 $ 0
[1]
Receivables net of allowance, imputed interest and trade-in right guarantees.