Leases Leases (Tables)

12 Months Ended

Dec. 31, 2020

Leases [Abstract]

Lease, Cost

The components of operating lease costs were as follows:

	For the Year Ended December 31
	2020		2019
	(In millions)
Operating lease cost	$	286	$	282
Variable lease cost	$	39	$	49
Sublease income	$	(99)	$	(89)
Net lease cost	$	226	$	242

Lessee, Operating Lease, Disclosure

ROU assets and lease liabilities for operating leases were:

	December 31, 2020		December 31, 2019
	(In millions)
ROU assets	$	1,314	$	1,488
Lease liabilities	$	1,470	$	1,654

Supplemental other information related to operating leases was as follows:

	December 31, 2020			December 31, 2019
	(Dollars in millions)
Cash paid for amounts included in the measurement of lease liability - operating cash flows	$	289		$	285
ROU assets obtained in exchange for new lease liabilities	$	70		$	341
Weighted-average remaining lease term	8 years			8 years
Weighted-average discount rate	3.4		%	3.3		%

Lessee, Operating Lease, Liability, Maturity

Maturities of operating lease liabilities were as follows:

	December 31, 2020
	(In millions)
2021	$	283
2022	238
2023	219
2024	197
2025	185
Thereafter	553
Total undiscounted cash flows	1,675
Less: interest	205
Present value of lease liability	$	1,470