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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Jun. 30, 2021 | Dec. 31, 2020
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Statement of Financial Position [Abstract] |  |
Accounts Receivable, Allowance for Credit Loss, Current | $ 10 | $ 13
Common stock, shares authorized (in shares) | 1,200,000,000 | 1,200,000,000
Common Stock, Par or Stated Value Per Share | $ 0.01 | $ 0.01
Preferred Stock, Shares Issued | 1,043,050 |
Preferred Stock, Shares Authorized | 50,000,000 |
Accounts receivable, net of allowance for doubtful accounts of $10 and $13, respectively | $ 10 | $ 13
Other Current Assets, Allowance | 0 |
Other intangible assets, net of accumulated amortization of $365 and $330, respectively | 365 | 330
Other Noncurrent Assets, Allowance | $ 21 | $ 21
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common stock, shares issued (in shares) | 818,662,357 | 818,398,654
Common stock, shares outstanding (in shares) | 666,329,509 | 665,370,128
Treasury stock, shares (in shares) | 152,332,848 | 153,028,526
Variable Interest Entity [Line Items] |  |
Non Recourse Debt Current | $ 1,345 | $ 1,430
Non-recourse debt, including $3,953 and $3,918, respectively, related to variable interest entities | 15,290 | 15,005
Consolidated Variable Interest Entities [Member] |  |
Variable Interest Entity [Line Items] |  |
Non Recourse Debt Current | 337 | 336
Non-recourse debt, including $3,953 and $3,918, respectively, related to variable interest entities | $ 3,953 | $ 3,918

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- Definition The current portion of the entity's non-recourse debt. Non-recourse debt is secured by the capital stock, physical assets, contracts and cash flows of the related subsidiary. The risk is limited to the respective subsidiary business and is without recourse to the Parent Company and other subsidiaries. + References No definition available. + Details
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- Definition The non-current portion of the entity's non-recourse debt. Non-recourse debt is secured by the capital stock, physical assets, contracts and cash flows of the related subsidiary. The risk is limited to the respective subsidiary business and is without recourse to the Parent Company and other subsidiaries. + References No definition available. + Details
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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