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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of stock-based compensation cost

						Second Quarter												First Six Months
						2021						2020						2021						2020
						($ in millions)
Stock-based compensation expense						$	16					$	10					$	32					$	12
Total tax benefit						8						3						25						29

Schedule of LTIP awards

During 2021, we granted stock options, restricted stock units (RSUs) and performance share units (PSUs) pursuant to the Long-Term Incentive Plan (LTIP), as follows:

						Second Quarter												First Six Months
						Granted						Weighted-Average Grant-Date Fair Value						Granted						Weighted-Average Grant-Date Fair Value
Stock options						—						$	—					42,770						$	62.49
RSUs						2,740						283.60						176,855						238.74
PSUs						120						274.17						50,060						240.69

Schedule of cash proceeds received from share-based payment awards

						Second Quarter												First Six Months
						2021						2020						2021						2020
						($ in millions)
Options exercised						128,934						162,400						341,480						685,638
Cash received upon exercise						$	12					$	12					$	31					$	55
Related tax benefit realized						5						3						12						16

Restricted Stock Units (RSUs)

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of share-based compensation, activity

						Second Quarter												First Six Months
						2021						2020						2021						2020
						($ in millions)
RSUs vested						1,730						—						259,127						202,299
Common Stock issued net of tax withholding						1,222						—						183,511						143,712
Related tax benefit realized						$	—					$	—					$	7					$	4

Performance Share Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of share-based compensation, activity

						First Six Months
						2021						2020
						($ in millions)
PSUs earned						78,727						235,935
Common Stock issued net of tax withholding						49,967						156,450
Related tax benefit realized						$	1					$	7

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- Definition

Tabular disclosure of cash received from exercise of stock options and similar instruments granted under share-based payment arrangements and tax benefit from exercise of stock options.

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Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

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