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Lease Commitments - Lease Maturity Prior to Topic 842 (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Gross rental commitments |
2019 | $ 303
2020 | 253
2021 | 221
2022 | 182
2023 | 148
Thereafter | 472
Total minimum payments required | 1,579
Rentals from subleases |
2019 | (34)
2020 | (30)
2021 | (30)
2022 | (30)
2023 | (12)
Thereafter | (5)
Total minimum payments required | (141)
Operating Lease Payments Net Of Sublease Rental Income [Abstract] |
2019 | 269
2020 | 223
2021 | 191
2022 | 152
2023 | 136
Thereafter | 467
Total minimum payments required | $ 1,438

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