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Share-Based Compensation (Narrative) (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Tax benefit related to share-based compensation | $ 3,000,000 | $ 7,000,000
Stock Options |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Award vesting period (in years) |  | 3 years
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | 300,000 | $ 300,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  | 2 years
Exercisable period of plans (in years) |  | 10 years
Restricted Share Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Award vesting period (in years) |  | 3 years
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | 111,000,000 | $ 111,000,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  | 2 years
Performance Share Units |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Vesting Period in years for Shares |  | 3
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 38,000,000 | $ 38,000,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition |  | 2 years
Performance Share Units | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Target performance goal (as a percent) |  | 0.00%
Performance Share Units | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Target performance goal (as a percent) |  | 240.00%

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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