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Stock Based Awards and Other Equity Instruments - Summary of MSUs Activity (Details) - MSUs $ / shares in Units, shares in Thousands, $ in Millions | 3 Months Ended
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Mar. 31, 2021 USD ($) $ / shares shares
MSUs outstanding |
Unvested outstanding, Beginning balance | shares | 174
Unvested outstanding, Ending balance | shares | 174
Weighted Average Grant-Date Fair Value Per Share |
Unvested outstanding, Weighted Average Grant-Date Fair Value Per Share, Beginning balance | $ / shares | $ 37.29
Unvested outstanding, Weighted Average Grant-Date Fair Value Per Share, Ending balance | $ / shares | $ 37.29
Aggregate Intrinsic Value |
Unvested RSUs outstanding, Aggregate Intrinsic Value | $ | $ 9
Unvested MSUs outstanding, Aggregate Intrinsic Value | $ | $ 9

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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + 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 (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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