Earnings (Loss) Per Common Share from Continuing Operations (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings (loss) per common share [Table Text Block]

	Year Ended December 31,
	2021		2020		2019
	(Dollars in millions, except per-share amounts; shares in thousands)
Income (loss) from continuing operations available to common stockholders	$	1,514	$	208	$	862
Basic weighted-average shares	1,215,221		1,213,631		1,212,037
Effect of dilutive securities:
Nonvested restricted stock units	2,973		1,531		1,811
Stock options	21		3		163
Diluted weighted-average shares	1,218,215		1,215,165		1,214,011
Earnings (loss) per common share from continuing operations:
Basic	$	1.25	$	.17	$	.71
Diluted	$	1.24	$	.17	$	.71