Commitments And Contingencies (Minimum Contractual Obligations) (Details) $ in Millions	Jun. 30, 2019 USD ($)
Long-term Purchase Commitment [Line Items]
Unrecorded Total	$ 1,619
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	316
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	488
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	397
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	160
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	134
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	104
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	20
Recorded Total	1,405
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	84
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	698
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	92
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	37
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	32
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	27
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	435
TotalUnconditionalPurchaseObligationBalanceSheetAmount	3,024
TotalUnconditionalPurchaseObligationBalanceSheetAmountRemainingForCurrentFiscalYear	400
Total Unconditional PurchaseObligationBalanceSheetAmountOneYearAfterFiscalYearEnd	1,186
Total Unconditional Purchase Obligation Balance Sheet Amount Two Years After Fiscal Year End	489
TotalUnconditionalPurchaseObligationBalanceSheetAmountThreeYearsAfterFiscalYearEnd	197
TotalUnconditionalPurchaseObligationBalanceSheetAmountFourYearsAfterFiscalYearEnd	166
Total Unconditional Purchase Obligation Balance Sheet Amount Five Years After Fiscal Year End	131
TotalUnconditionalPurchaseObligationBalanceSheetAmountThereafter	455
Developer Commitments
Long-term Purchase Commitment [Line Items]
Unrecorded Total	955
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	176
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	302
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	255
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	91
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	73
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	58
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Marketing [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	373
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	75
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	100
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	90
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	42
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	40
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	26
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Senior Notes Interest [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	165
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	27
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	41
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	20
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	20
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	19
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	19
Operating Lease Imputed Interest [Member] [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	25
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	6
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	7
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	5
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	3
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	2
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	1
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	1
Other Unrecorded Purchase Obligations [Member]
Long-term Purchase Commitment [Line Items]
Unrecorded Total	101
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	32
Unrecorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	38
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Two	27
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Three	4
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Four	0
Unrecorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Unrecorded Unconditional Purchase Obligation, Due in Rolling after Year Five	0
Senior Notes Principal And Interest [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	1,014
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	14
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	600
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	400
Operating Lease [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	240
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	40
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	49
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	41
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	34
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	27
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	22
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	27
Transition And Other Taxes [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	79
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	11
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	3
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	5
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	5
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	8
License obligations [Member]
Long-term Purchase Commitment [Line Items]
Recorded Total	72
Recorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	19
Recorded Unconditional Purchase Obligation, Due in Next Rolling Twelve Months	26
Recorded Unconditional Purchase Obligation, Due in Rolling Year Two	27
Recorded Unconditional Purchase Obligation, Due in Rolling Year Three	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Four	0
Recorded Unconditional Purchase Obligation, Due in Rolling Year Five	0
Recorded Unconditional Purchase Obligation, Due in Rolling after Year Five	$ 0