XML 72 R30.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Equipment Installment Plan Receivables, Gross Receivables by Credit Category (Details) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables, gross | $ 661 | $ 628
Unbilled |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables | 626 | 591
Billed |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables | 22 | 25
Equipment installment plan receivables, past due | 13 | 12
Lower Risk |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables, gross | 612 | 586
Lower Risk | Unbilled |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables | 582 | 553
Lower Risk | Billed |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables | 20 | 23
Equipment installment plan receivables, past due | 10 | 10
Higher Risk |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables, gross | 49 | 42
Higher Risk | Unbilled |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables | 44 | 38
Higher Risk | Billed |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Equipment installment plan receivables | 2 | 2
Equipment installment plan receivables, past due | $ 3 | $ 2

X
- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Recorded Investment -URI http://asc.fasb.org/extlink&oid=65880944 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(3)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis=us-gaap_UnbilledRevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivablesByBillingStatusTypeAxis=us-gaap_BilledRevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PrimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubprimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |