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Related Party Balances and Transactions (Details) - California Foundation - Other accrued liabilities - USD ($) $ in Millions | 3 Months Ended |
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Jun. 30, 2018 | Mar. 31, 2018
Related Party Transaction [Line Items] |  |
Pledge payable balance |  | $ 100
Pledge payable balance, after tax |  | $ 64
Pledge payment made to Foundation | $ 100 |
Pledge payment made to Foundation, net of tax | $ 64 |

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- Definition Accounts Payable, Related Parties, Net of Tax + References No definition available. + Details
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- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 + Details
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- Details
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