Leases Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Abstract]

Lease, Cost [Table Text Block]

Total lease cost is comprised of the following:

$ in millions	Year Ended December 31, 2019
Operating lease cost	$	318
Variable lease cost	11
Short-term lease cost	75
Total lease cost	$	404

Supplemental Balance Sheet Disclosures [Text Block]

Supplemental operating lease balance sheet information consists of the following:

$ in millions	December 31, 2019
Operating lease right-of-use assets	$	1,511
Other current liabilities	261
Operating lease liabilities	1,308
Total operating lease liabilities	$	1,569

Other Supplemental Lease Information [Table Text Block]

Other supplemental operating lease information consists of the following:

$ in millions	Year Ended December 31, 2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	307
Right-of-use assets obtained in exchange for new lease liabilities	462
Weighted average remaining lease term	11.6 years
Weighted average discount rate	3.8		%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Maturities of operating lease liabilities as of December 31, 2019 are as follows:

$ in millions
Year Ending December 31
2020	$	300
2021	262
2022	224
2023	185
2024	146
Thereafter	875
Total lease payments	1,992
Less: imputed interest	(423		)
Present value of operating lease liabilities	$	1,569

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

As of December 31, 2018, future minimum lease payments under long-term non-cancelable operating leases as classified under ASC 840 were as follows:

$ in millions
Year Ending December 31
2019	$	312
2020	270
2021	221
2022	186
2023	152
Thereafter	939
Total minimum lease payments	$	2,080