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Employee Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2021

Employee Incentive Plans [Abstract]

Share Grants And Fair Value

				Fair Value at
				Date of Grant
		Units		($ millions)
Prior periods (since inception)		24,497,626		$	561
December 31, 2018		1,146,267			62
December 31, 2019		1,374,217			65
December 31, 2020		1,227,433	1		70
		28,245,543		$	758

______________________________

(1)Stock Incentive Plan number of granted restricted stock units related to 2020 was adjusted by 5,290 additional restricted stock units during the three months ended March 31, 2021.

2007 Stock Incentive Plan, ROI Summary

		Stock
		Incentive Plan
		Units
Balance, December 31, 20201		4,972,611
Granted		—
Cancelled		(12,345)
Distributed		—
Balance, March 31, 2021		4,960,266

_____________________________

(1)Stock Incentive Plan number of granted restricted stock units related to 2020 was adjusted by 5,290 additional restricted stock units during the three months ended March 31, 2021.

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Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value.

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