2.2.0.7 false Borrowing Arrangements (Details) (USD $) 0610 - Disclosure - Borrowing Arrangements (Details) true false In Millions false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 $ 3 Borrowing Arrangements (Textuals) [Abstract] 1 rai_BorrowingArrangementsTextualsAbstract rai false na duration Borrowing Arrangements. false false false false false true false false false false false verboselabel false 1 false false false false 0 0 false false false xbrli:stringItemType string Borrowing Arrangements. false 4 Revolving credit facility existing borrowing capacity 2 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 498000000 498 false false false xbrli:monetaryItemType monetary Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 5 Revolving credit facility maximum borrowing capacity 2 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity us-gaap true credit instant No definition available. false false false false false false false false false false false verboselabel false 1 true true false false 848000000 848 false false false xbrli:monetaryItemType monetary Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false 1 3 false Millions UnKnown UnKnown false true