Commitments And Contingencies (Minimum Contractual Obligations) (Details) $ in Millions	Sep. 30, 2016 USD ($)
Long Term Purchase Commitments
Unrecorded Total	$ 2,535
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	153
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	491
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	499
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	423
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	380
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	326
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	263
Recorded Total	1,140
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	15
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	23
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	24
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	25
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	626
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	27
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	400
TotalUnconditionalPurchaseObligationBalanceSheetAmount	3,675
TotalUnconditionalPurchaseObligationBalanceSheetAmountRemainingForCurrentFiscalYear	168
Total Unconditional PurchaseObligationBalanceSheetAmountOneYearAfterFiscalYearEnd	514
Total Unconditional Purchase Obligation Balance Sheet Amount Two Years After Fiscal Year End	523
TotalUnconditionalPurchaseObligationBalanceSheetAmountThreeYearsAfterFiscalYearEnd	448
TotalUnconditionalPurchaseObligationBalanceSheetAmountFourYearsAfterFiscalYearEnd	1,006
Total Unconditional Purchase Obligation Balance Sheet Amount Five Years After Fiscal Year End	353
TotalUnconditionalPurchaseObligationBalanceSheetAmountThereafter	663
Developer/Licensor Commitments - Royalty and Non-Royalty Bearing
Long Term Purchase Commitments
Unrecorded Total	1,427
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	66
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	315
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	300
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	251
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	210
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	206
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	79
Marketing
Long Term Purchase Commitments
Unrecorded Total	503
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	29
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	79
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	111
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	91
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	93
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	74
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	26
Operating leases
Long Term Purchase Commitments
Unrecorded Total	234
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	16
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	38
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	34
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	31
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	29
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	23
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	63
Senior Notes Interest
Long Term Purchase Commitments
Unrecorded Total	278
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	17
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	78
Other unrecorded purchase obligations
Long Term Purchase Commitments
Unrecorded Total	93
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	25
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	18
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	13
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	9
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	4
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	17
Senior Notes and Interest
Long Term Purchase Commitments
Recorded Total	1,004
Senior Notes Interest
Long Term Purchase Commitments
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	4
Senior Notes
Long Term Purchase Commitments
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	600
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	400
Licensing and lease obligations
Long Term Purchase Commitments
Recorded Total	136	[1]
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	11	[1]
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	23	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	24	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	25	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	26	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	27	[1]
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	$ 0	[1]

[1] Lease commitments have not been reduced for approximately $1 million due in the future from third parties under non-cancelable sub-leases. See Note 7 for additional information regarding recognized obligations from our licensing-related commitments.